Take into hot drinks. Prepare a tea with raspberry or currant, honey or lemon, make an infusion of chamomile and St. John's Wort. Herbal infusions are prepared the same way - a spoonful of dry grass pour a glass of boiling water and leave for a few minutes. Very good warm ginger drink - a small piece of ginger root grate, pour boiling water and add a little honey.
Do not take medications that increase the temperature - in this condition, the effect of their reception may be inadequate. It is better to try to warm up, follow the simple exercise - tilts, squats, jumping. If you feel good, do a little workout to warm up your muscles. Traditional methods of rewarming helps underarm chafing powder black pepper or regular salt. You can chew and swallow the lead from a pencil - a few hours the temperature rises. Eating spicy foods can also help.
If you feel fatigue, then drink something hot and try to sleep. Sleep - good medicine, it helps to normalize the functioning of many organs and systems. Waking up, you feel better - try to experience positive emotions.
If low body temperature is kept for several days, it is an occasion for seeking medical attention. The reasons for such states may be low blood pressure, anemia, decreased immunity - if correct the cause, then the body temperature normal.