1.   Smoking can impair your health.

2.   Disordered sleep patterns impair the health of one-third of all elders, he added.

3.   Obesity, on the other hand, also impairs health, but it is not considered an eating disorder.

4.   They typically impair bone health only when taken orally or by injection on a regular basis.

5.   He said the prison diet of mainly bread and mustard permanently impaired his health.