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Current Obesity Reports Jun 2023Water, which is of vital importance, has a critical role in maintaining the normal function of the body, and even mild dehydration can play a role in the development of... (Review)
Review
PURPOSE OF REVIEW
Water, which is of vital importance, has a critical role in maintaining the normal function of the body, and even mild dehydration can play a role in the development of various diseases. Therefore, it is of great importance to meet the recommended daily water consumption amounts. In addition to the numerous roles of water in metabolism, its effect on energy metabolism should not be overlooked. Water consumption can increase energy expenditure and be an additional tool for weight management. Therefore, the importance of water consumption, which is like a hidden component for treating of obesity, should be emphasized. This review was written to explain the possible mechanisms of water consumption in energy expenditure and body weight management.
RECENT FINDINGS
Because water consumption is associated with sympathetic activity, which increases metabolic rate (thermogenesis) and daily energy expenditure, the increase in sympathetic activity caused by water consumption is an important and unrecognized component of daily energy expenditure. In addition to the concept of water-based thermogenesis, water, which is a potential improvement factor in body composition, also plays an auxiliary role in body weight loss with both less energy intake and increased fat oxidation. From this perspective, water consumption may have critical importance in the fight against increasing obesity worldwide. Considering its effect on energy metabolism in various ways, it becomes necessary to focus more on the importance of water on human health. (Created by BioRender.com).
Topics: Humans; Drinking; Obesity; Energy Metabolism; Diet, Reducing; Energy Intake; Body Composition; Water; Body Weight
PubMed: 37036559
DOI: 10.1007/s13679-023-00501-8 -
Nutricion Hospitalaria Oct 2020Water is an essential nutrient for life and the most abundant component in the human body. However, its dietary recommendations or clinical management guidelines do not...
Water is an essential nutrient for life and the most abundant component in the human body. However, its dietary recommendations or clinical management guidelines do not receive as much attention as they deserve. In addition, there are some obstacles to establishing optimal values, both for the amount of water the body must contain and for water ingestion. Water intake and elimination depend on unsteady factors that are difficult to measure and, at the same time, compensated by the body's ability to regulate homeostasis. Since scientific evidence is lacking for establishing recommendations, "adequate intakes" (to maintain an adequate hydration state) have been estimated using data on water intake from groups of healthy people. The European Food Safety Authority (EFSA) also considers desirable the use of urine osmolarity to estimate the adequacy of water intake in adults. Clinical studies have generally shown the benefits of adequate hydration and the damage caused by water imbalance, whether quantitative (dehydration and overhydration) or qualitative (extracellular and intracellular water). Unfortunately, these studies are few and often have poor cross-sectional, case-control, or prospective designs, and use small samples or indirect methods to assess hydration status. This article presents up-to-date information on subjects such as: 1) compliance with water consumption recommendations and suggestions for improvement; 2) techniques available to measure hydration status and their clinical applications; 3) effects of hydration/dehydration on physical or cognitive activities and chronic diseases; and 4) existing Spanish regulations on the quality and salubrity of water.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; Child; Child, Preschool; Cross-Sectional Studies; Diet; Disease; Drinking; Female; Guidelines as Topic; Health; Humans; Infant; Infant, Newborn; Male; Middle Aged; Nutrition Surveys; Prospective Studies; Spain; Water; Water Quality; Young Adult
PubMed: 32960634
DOI: 10.20960/nh.03160 -
Journal of Water and Health Sep 2022The aim was to determine the drinking water preferences of people applied to a family health center. This cross-sectional study was carried out from 1 April to 31 May...
The aim was to determine the drinking water preferences of people applied to a family health center. This cross-sectional study was carried out from 1 April to 31 May 2022. The data were evaluated using the chi-square test and percent ratios with a significance of p < 0.05. The mean age of all 432 respondents was 48.03 ± 15.86. It was determined that those aged 31-45 had drunk more bottled water (p < 0.01) and more spring water (p < 0.001), than those aged 65 and above and had more purified water (p < 0.001), than women who had more tap water (p < 0.001), than married people who had more demijohn and tap water (p < 0.001, each one), than divorced/widows who had more packaged and purified water (p < 0.001, each one), than the illiterate/literate who had bottled water (p < 0.001, per one) and than those who had no income/people who lived on the state or municipal assistance who had only carboy water (p < 0.001). This study suggests that the biggest factor that positively affected the drinking water preference was the packaging of the water. However, the drinking rates of mains water and spring water were quite low. Convincing the authorities to make the mains water drinkable is of great importance in terms of overcoming the public's distrust of mains water.
Topics: Cross-Sectional Studies; Drinking; Drinking Water; Female; Habits; Humans; Water Supply
PubMed: 36170199
DOI: 10.2166/wh.2022.164 -
Kidney International Jul 2023Water is a dwindling natural resource, and potable water is wrongly considered an unlimited resource. Dialysis, particularly hemodialysis, is a water-hungry treatment... (Review)
Review
Water is a dwindling natural resource, and potable water is wrongly considered an unlimited resource. Dialysis, particularly hemodialysis, is a water-hungry treatment that impacts the environment. The global annual water use of hemodialysis is approximately 265 million m/yr. In this reference estimate, two-thirds of this water is represented by reverse osmosis reject water discharged into the drain. In this review, we would like to draw attention to the complexity and importance of water saving in hemodialysis. We propose that circular water management may comply with the "3R" concept: reduce (reduce dialysis need, reduce dialysate flow, and optimize reverse osmosis performance), reuse (reuse wastewater as potable water), and recycle (dialysis effluents for agriculture and aquaponic use). Awareness and sustainability should be integrated to create positive behaviors. Effective communication is crucial for water savings because local perspectives may lead to global opportunities. Besides the positive environmental impacts, planet-friendly alternatives may have significant financial returns. Innovative policies based on the transition from linear to circular water management may lead to a paradigm shift and establish a sustainable water management model. This review seeks to support policymakers in making informed decisions about water use, avoiding wasting, and finding solutions that may be planet friendly and patient friendly in dialysis, especially in hemodialysis treatments.
Topics: Humans; Renal Dialysis; Drinking Water; Drinking; Planets; Water Purification
PubMed: 37116701
DOI: 10.1016/j.kint.2023.04.008 -
Environmental Science & Technology Mar 2023Balancing human communities' and ecosystems' need for freshwater is one of the major challenges of the 21 century as population growth and improved living conditions put...
Balancing human communities' and ecosystems' need for freshwater is one of the major challenges of the 21 century as population growth and improved living conditions put increasing pressure on freshwater resources. While frameworks to assess the environmental impacts of freshwater consumption have been proposed at the regional scale, an operational method to evaluate the consequences of consumption on different compartments of the water system and account for their interdependence is missing at the global scale. Here, we develop depletion factors that simultaneously quantify the effects of water consumption on streamflow, groundwater storage, soil moisture, and evapotranspiration globally. We estimate freshwater availability and water consumption using the output of a global-scale surface water-groundwater model for the period 1960-2000. The resulting depletion factors are provided for 8,664 river basins, representing 93% of the landmass with significant water consumption, i.e., excluding Greenland, Antarctica, deserts, and permanently frozen areas. Our findings show that water consumption leads to the largest water loss in rivers, followed by aquifers and soil, while simultaneously increasing evapotranspiration. Depletion factors vary regionally with ranges of up to four orders of magnitude depending on the annual consumption level, the type of water used, aridity, and water transfers between compartments. Our depletion factors provide valuable insights into the intertwined effects of surface and groundwater consumption on several hydrological variables over a specified period. The developed depletion factors can be integrated into sustainability assessment tools to quantify the ecological impacts of water consumption and help guide sustainable water management strategies, while accounting for the performance limitations of the underlying model.
Topics: Humans; Drinking; Ecosystem; Groundwater; Rivers; Soil; Water Supply; Drinking Water
PubMed: 36854446
DOI: 10.1021/acs.est.2c04803 -
Journal of Occupational and... Sep 2023The impact of water consumption bolus volume and frequency on hydration biomarkers during work in the heat is unknown. In a randomized, crossover fashion, eight males... (Randomized Controlled Trial)
Randomized Controlled Trial
The impact of water consumption bolus volume and frequency on hydration biomarkers during work in the heat is unknown. In a randomized, crossover fashion, eight males consumed either 500 mL of water every 40 min or 237 mL of water every 20 min during 2 hr of continuous walking at 6.4 kph, 1.0% grade in a 34 °C/30% relative humidity environment, followed by 2 hr of rest. Hydration biomarkers and variables were assessed pre-work, post-work, and after the 2 hr recovery. There were no differences in body mass between trials at any time point (all > 0.05). Percent change in plasma volume during work was not different when 237 mL of water was repeatedly consumed (-1.6 ± 8.2%) compared to 500 mL of water (-1.3 ± 3.0%, = 0.92). Plasma osmolality was maintained over time ( = 0.55) with no difference between treatments ( = 0.21). When consuming 500 mL of water repeatedly, urine osmolality was lower at recovery (205 ± 108 mOsmo/L) compared to pre-work (589 ± 95 mOsmo/L, < 0.01), different from repeatedly consuming 237 mL of water which maintained urine osmolality from pre-work (548 ± 144 mOsmo/L) through recovery (364 ± 261 mOsmo/L, = 0.14). Free water clearance at recovery was greater with repeated consumption of 500 mL of water (1.2 ± 1.0 mL/min) compared to 237 mL of water (0.4 ± 0.8 mL/min, = 0.02). Urine volume was not different between treatments post-work ( = 0.62), but greater after 2 hr of recovery when repeatedly consuming 500 mL of water compared to 237 mL ( = 0.01), leading to greater hydration efficiency upon recovery with repeated consumption of 237 mL of water (68 ± 12%) compared to 500 mL (63 ± 14%, = 0.01). Thirst and total gastrointestinal symptom scores were not different between treatments at any time point (all > 0.05). Body temperatures and heart rate were not different between treatments at any time point (all > 0.05). Drinking larger, less frequent water boluses or drinking smaller, more frequent water boluses are both reasonable strategies to promote adequate hydration and limit changes in body mass in males completing heavy-intensity work in the heat.
Topics: Humans; Male; Dehydration; Drinking; Exercise; National Institute for Occupational Safety and Health, U.S.; Osmolar Concentration; United States; Water; Water-Electrolyte Balance
PubMed: 37267511
DOI: 10.1080/15459624.2023.2221713 -
The British Journal of Nutrition May 2014Although it is well known that water is essential for human homeostasis and survival, only recently have we begun to understand its role in the maintenance of brain... (Review)
Review
Although it is well known that water is essential for human homeostasis and survival, only recently have we begun to understand its role in the maintenance of brain function. Herein, we integrate emerging evidence regarding the effects of both dehydration and additional acute water consumption on cognition and mood. Current findings in the field suggest that particular cognitive abilities and mood states are positively influenced by water consumption. The impact of dehydration on cognition and mood is particularly relevant for those with poor fluid regulation, such as the elderly and children. We critically review the most recent advances in both behavioural and neuroimaging studies of dehydration and link the findings to the known effects of water on hormonal, neurochemical and vascular functions in an attempt to suggest plausible mechanisms of action. We identify some methodological weaknesses, including inconsistent measurements in cognitive assessment and the lack of objective hydration state measurements as well as gaps in knowledge concerning mediating factors that may influence water intervention effects. Finally, we discuss how future research can best elucidate the role of water in the optimal maintenance of brain health and function.
Topics: Affect; Cognition; Dehydration; Drinking; Humans; Water-Electrolyte Balance
PubMed: 24480458
DOI: 10.1017/S0007114513004455 -
Environmental Science and Pollution... Apr 2020Chemical sector contributes extensively to the economic development of countries, however, it is one of the main water-consuming industries. Considering that the...
Chemical sector contributes extensively to the economic development of countries, however, it is one of the main water-consuming industries. Considering that the corporate water accounting along complete SCs can help companies in improving their sustainable water managements along their value chains, this paper aims to study the water consumption in the entire supply chain of the chemical industry from a multi-regional input-output perspective. In this regard, six Asian countries including Indonesia, Taiwan, China, Japan, South Korea and India are selected to be studied based upon the availability of their data. In the following, the direct water consumed by themselves and the indirect water used by their suppliers are measured for each country using input-output analysis method. Moreover, to draw on the conclusions of selected Asian countries, the amount of consumed water in their supply chains is compared with each other using one-way analysis of variance method. The results from input-output analysis show that the indirect water consumption in the chemical SCs of Indonesia, China, India and South Korea are 20.66, 4.62, 1.37 and 1.08 times greater than their direct water use, while the indirect water consumption for Japan and Taiwan are 0.73 and 0.13 times less than their direct values. The final results from one-way analysis of variance indicate that direct and indirect amount of water consumptions in the chemical supply chains of the selected countries do not follow the same trend over 15 years. However, India and China are the top two countries in terms of both direct and indirect amounts of water consumption due to their higher population. This study presents valuable information for authorities and policymakers in terms of proper water consumption management in chemical industry and other industrial sectors. In this matter, technology-based or production-related actions are beneficiary for affecting direct water use, while consumption-based or end-use actions are more appropriate for affecting indirect water consumption.
Topics: Analysis of Variance; Asia; Chemical Industry; China; Drinking; India; Indonesia; Japan; Republic of Korea; Taiwan; Water Supply
PubMed: 31993904
DOI: 10.1007/s11356-020-07707-6 -
International Journal of Environmental... Apr 2020Understanding water intake variation is crucial for assessing human exposure to water pollutants. The correlation between water intake and demographic factors warrants...
Understanding water intake variation is crucial for assessing human exposure to water pollutants. The correlation between water intake and demographic factors warrants further exploration. A cross-sectional study was conducted to estimate urban water consumption and its associated factors among adults in Wuxi, China, in 2015. The water consumption information was obtained by a 24-h self-report diary over seven consecutive days. A classification and regression tree (CART) analysis was applied to detect how water consumption varied with the demographic variables. Finally, a total of 1188 adults (18-87 years old) were included. The results demonstrated that the median water consumption of the adults was 1525 mL/day in summer and 1217 mL/day in winter. The results of the CART analysis demonstrated that body mass index (BMI) and age were the leading factors that were associated with water consumption in summer and winter, respectively. The water consumption threshold of BMI for men differed from women (23 kg/m vs. 18 kg/m) in summer, and the threshold of age for men was also different from women (43 years vs. 21 years) in winter. In conclusion, the findings are useful for accurately assessing human exposure to water pollutants and identifying the high-risk subgroups.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; Body Mass Index; China; Cross-Sectional Studies; Drinking; Female; Humans; Male; Middle Aged; Regression Analysis; Urban Population; Water Supply; Young Adult
PubMed: 32344848
DOI: 10.3390/ijerph17092983 -
Environmental Monitoring and Assessment Jun 2022Industrial water consumption is a major component of the total regional water consumption. Accurate and scientific prediction of industrial water consumption is an...
Industrial water consumption is a major component of the total regional water consumption. Accurate and scientific prediction of industrial water consumption is an essential guide to the rational use of natural resources. In this paper, we proposed a combined model of CEEMD (collective empirical modal decomposition) and ARIMA (autoregressive integrated moving average) for forecasting industrial water consumption to establish an accurate and efficient forecasting model, because of the poor generalization ability of most current industrial water consumption forecasting models. The influencing factors of industrial water consumption are complex, and the data are non-stationary. "Decomposition-prediction-reconstruction" is one of the significant methods for forecasting time series data, and the data decomposition has a suppressive influence on the modal mixing problem in the EMD decomposition procedure. Based on the smoothing ability of CEEMD for non-smooth signals and the better adaptation of the autoregressive moving average prediction model (ARIMA), a combined CEEMD-ARIMA model was established for industrial water consumption forecasting. This study was conducted for industrial water consumption in Henan Province in central China. The results suggest the combined CEEMD-ARIMA model has a favorable forecasting effect, with an average relative percentage error of 1.96%, and mean square error (MSE) of 0.35, a Nash efficiency coefficient (NSE) of 0.95, a prediction pass rate of 100%, and a better prediction accuracy than the ARIMA model and the combined EEMD-ARIMA model. It provides an effective prediction method for the prediction of industrial water consumption and has good application prospects.
Topics: China; Drinking; Environmental Monitoring; Forecasting; Humans; Models, Statistical
PubMed: 35652955
DOI: 10.1007/s10661-022-10149-x