Can dehydration stress you? Here's what a study says

Is there a link between not drinking enough water and stress?. Yes, says a study. A new study suggests that drinking less than one and a half litres of water a day can raise cortisol levels, the primary stress hormone in the body. Conducted by John Moores University, Liverpool, the study found that inadequate water intake not only elevates stress but can also contribute to long-term health issues.

In fact, the researchers observed a more than 50% increase in cortisol reaction among people who drank less than 1.5 litres of water daily compared to those who consumed enough. Elevated cortisol, especially when persistent, is known to fuel stress and put strain on the body.

The research involved 62 participants divided into two groups based on their usual water intake. Over the next seven days, they continued with their regular drinking habits. Afterwards, they underwent the Trier Social Stress Test, which included tasks like public speaking and mental calculation.

Both groups showed a rise in anxiety and heart rate. However, those who consumed less water exhibited a sharper spike in cortisol levels, a clear indication of dehydration-linked stress.

Rise in cortisol and its impact
Increased cortisol caused by dehydration can heighten the risk of heart disease, kidney injury and other health complications, including the risk of type 2 diabetes. The study, published in the journal Applied Physiology, also noted that such risks are particularly concerning for people dealing with high-stress jobs, financial struggles or heavy family responsibilities.

How much water should you drink?
According to the UK’s National Health Service (NHS), people should aim for six to eight glasses of fluid daily. This includes water, sugar-free drinks, tea, coffee and other beverages. However, individual needs vary depending on age, body size, physical activity levels, pregnancy or breastfeeding status, climate and health conditions.

Interestingly, people who drink less water don’t necessarily feel thirstier than those who hydrate well. However, the body gives other clues, such as darker, more concentrated urine, which signal dehydration.

Tips to stay hydrated
1) Keep a refillable water bottle with you at all times
2) Set reminders to drink water throughout the day.
3) Add water-rich foods like cucumbers, lettuce, watermelon and oranges to your diet.
4)Try infused water with fruits or herbs for flavour.
5) Include herbal teas and soups in your meals.
Maintaining adequate hydration is just as important as sleep, nutrition, and exercise when it comes to managing stress. By drinking enough water every day, you’re not only reducing your stress levels but also safeguarding your long-term health.