Thankfully, the research also reveals increased alertness as a result of water intake. The good news? Help is at hand – and it’s free! Unfortunately medicating your bad mood with a double espresso may only make you feel more on edge! Another study found that you actually perceive mental tasks to be more difficult when you’re dehydrated, even if your performance doesn’t suffer. This can have a major impact on your workplace satisfaction, as your productivity dips, while you’re also less capable of coping with stress.
This crankiness is caused by a combination of the effects on the brain of dehydration and heat stress, since water also helps us regulate our responses to temperature. The brain is 75% water, so it makes sense that our alertness, cognitive functions and efficiency might be affected by not drinking enough water.Ī US study on the effects of mild dehydration confirmed significantly higher levels of confusion and anger in study participants who didn’t drink enough water. This can quickly result in fatigue, reduced short term memory, headaches and poor concentration. Research shows that even 1 or 2% dehydration (a deficit of only a few hundred millilitres) actually causes shrinkage in cells, including brain cells. Often, we don’t think about it until we’re really thirsty but by then the fatiguing effects of dehydration may already be kicking in. Grabbing a drink of water can be the last thing on our minds on a busy work day. So before you grab a coffee or a sugary snack to pep you up, ask yourself: are you drinking enough water? It’s known as the ‘afternoon slump’, and most office workers know the feeling! What many people don’t know, though, is that it’s often caused by dehydration. Do you ever experience that time after lunch on a work day when the hands of the clock seem to be moving in slow motion the computer screen looks a little fuzzy and your mind is wandering to what you’re doing on the weekend?
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