While caffeine boosts alertness and overcomes fatigue, overdoing it can keep you awake and produce irritability, upset stomach, the 'jitters', nervousness and headaches. The more caffeine you drink, the more likely you are to experience these-but you won't detect it unless you have to stop suddenly. Low quality food You need to eat to eat well to do your best for another day at the coalface. You need healthy meals to boost your levels of these compounds as well as the essential vitamins and minerals. No breakfast reduces your ability to concentrate and perform complex mental tasks in the morning.
Studies also show that breakfast eaters have healthier diets overall and less problems with weight.
Being seriously overweight Carrying an extra 20 or 30 kilos around every day is very tiring for the body and strains lower joints. Make an appointment with an accredited dietitian to have a long-term eating plan personalised for you. If you find you need a lift, try some of the tips to beat an afternoon slump. This also applies if you are premenstrual. Lack of sleep Not everyone needs a full eight hours, but if you're skimping on sleep or tossing and turning all night, you won't be at your peak the next day.