Why should you include weight training as part of your exercise routine?
1. to increase muscle mass
2. to increase bone density
3. to increase flexibility

a. only 1
b. only 2
c. 1 and 3
d. all of them

Correct answer choice is :

The first aim is that weight training increases muscle mass. The more muscle mass you have, the greater your metabolism. People with a greater metabolism manage to have less body fat, hence adding weight exercise to your workout program will help keep a healthy weight. Some other goals are that weight training supports to promote bone health, enhance flexibility and balance, and reduce stress.

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.