One idea for promoting sport and excerise.

Use those health care commercials, but when the product show up, change it to say,

'Don't want that happen on you, excerise now!'

'according to servey, it is due to lack of exercise."

' your skin can back 10 years after you have regular exercise."

' Stressful? Feel full but hungry? sport can save you!'

an idea for genetic food

plants can be feed by sea water.

it also help to fight for fresh water saving.