No drinking habits
It's hot in summer and the human body is lack of water than in winter. If you have the habit of not drinking water, it's fatal.
Overeating
In summer, if you want to be in shape, you'd better refuse to eat. No matter how much you like to eat, you should not have the habit of overeating.
Binge on cold drinks
Cold drink can quench thirst, but it hurts your stomach. In order to have a healthy stomach, it's better to drink less cold drink.
strenuous exercise
Sports can be, but don't always exercise hard. It's not good to sweat all day long.
Force yourself not to sleep
Summer easy to make sleepy, at this time may wish to sleep properly, do not force themselves not to sleep, that is harmful to the body.
bask in the sunshine
The sun in summer is not like winter, but it's very poisonous. It's easy to burn you. Don't think the sun is calcium supplement.