The forces in a capitalist society if left unchecked tend to make the rich richer and the poor poorer.

Eating disorders can have serious medical and psychological consequences which left unchecked can kill. Parents should address this issue and ask their children to discuss how they feel about themselves.

Population when unchecked goes on doubling itself every 25 years or increases in a geometrical ratio.

If left unchecked global change will create violent conflict torrential storms shrinking coastlines and irreversible catastrophe.