Too much caffeine
That afternoon cup of coffee can disrupt your sleep cycle: researchers at Michigan’s Henry Ford Hospital’s Sleep Disorders & Research Center found that consuming caffeine even six hours before bedtime can reduce how long a person sleeps – and the quality of their sleep. Psychology Today advises drinking your caffeine early in the morning, then tapering off by 2pm. After that, no caffeine for you.
You may take pride in your ability to do five tasks at once, but there’s a hitch: you’re not actually doing five tasks at once – you’re switching back and forth between them. All of that re-focusing uses up the oxygenated glucose in your brain, according to Science Alert, making you tired and less capable of tackling your to-do list. To counteract the issue, be more methodical about how you approach work by focusing on one thing at a time and scheduling regular 15-minute breaks to give your brain some much-needed R&R.
You’ve probably heard that if you feel hungry, you might actually be thirsty. But did you know that if you feel tired, you might actually be thirsty? Researchers at the University of Connecticut found that even mild dehydration can torpedo energy, especially in women. The reason is unclear, but one theory is that the brain’s primal warning system is letting you know that it needs water to survive. Regardless, it’s important to monitor your water intake – all year round and all day long – because the body often doesn’t realise it’s thirsty until it’s already 1 to 2 per cent dehydrated.