eating too much junk food, makes you blood sugar rise rapidly. eat whole grains, fruits, and vegetables instead.
work out for 30 minutes a day. but don't exercise for two hours, it will be unhealthy
Wash hands correctly
scrub hands with soap and water for 20 seconds before eating and after using the bathroom
Watch your bag
carry a leather or vinylone, it can be cleaned easier with an antibacterial wipe