3 reasons to drink more water

Three critical benefits of drinking more water

2 min read

Help with weight loss


This is because water can boost your metabolic rate.

Some evidence suggests that increasing water intake can promote weight loss by slightly increasing your metabolism, which can increase the number of calories you burn on a daily basis.

A 2013 study in 50 young women with overweight demonstrated that drinking an additional 16.9 ounces (500 mL) of water 3 times per day before meals for 8 weeks led to significant reductions in body weight and body fat compared with their pre-study measurements (27Trusted Source).

The timing is important too. Drinking water half an hour before meals is the most effective. It can make you feel more full so that you eat fewer calories (28Trusted Source29).

In one study, dieters who drank 16.9 ounces (0.5 liters) of water before meals lost 44% more weight over a period of 12 weeks than dieters who didn’t drink water before meals (30Trusted Source).

Help to prevent headaches

Dehydration can trigger headaches and migraine in some individuals (14Trusted Source15Trusted Source).

Research has shown that a headache is one of the most common symptoms of dehydration. For example, a study in 393 people found that 40% of the participants experienced a headache as a result of dehydration (14Trusted Source).

What’s more, some studies have shown that drinking water can help relieve headaches in those who experience frequent headaches.

A study in 102 men found that drinking an additional 50.7 ounces (1.5 liters) of water per day resulted in significant improvements on the Migraine-Specific Quality of Life scale, a scoring system for migraine symptoms (16).

Plus, 47% of the men who drank more water reported headache improvement, while only 25% of the men in the control group reported this effect (16).

However, not all studies agree, and researchers have concluded that because of the lack of high quality studies, more research is needed to confirm how increasing hydration may help improve headache symptoms and decrease headache frequency (17Trusted Source).

 

Help brain function & energy levels

Your brain is strongly influenced by your hydration status.

Studies show that even mild dehydration, such as the loss of 1–3% of body weight, can impair many aspects of brain function.

In a study in young women, researchers found that fluid loss of 1.4% after exercise impaired both mood and concentration. It also increased the frequency of headaches (6Trusted Source).

Many members of this same research team conducted a similar study in young men. They found that fluid loss of 1.6% was detrimental to working memory and increased feelings of anxiety and fatigue (7).

A fluid loss of 1–3% equals about 1.5–4.5 pounds (0.5–2 kg) of body weight loss for a person weighing 150 pounds (68 kg). This can easily occur through normal daily activities, let alone during exercise or high heat.

Many other studies, with subjects ranging from children to older adults, have shown that mild dehydration can impair mood, memory, and brain performance (89Trusted Source1011Trusted Source1213).

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