As we age we can lose muscle due to decreasing activity and hormone levels.
Strength training can mitigate and even reverse losses, so you are more capable in daily tasks.
Most joint pain is due to inadequate or imbalanced muscles around the joint.
Strength training has been shown time after time to be an effect pain killer for many joint issues, including back, shoulders and knee pain.
To improve body fat percentages you need to either decrease body fat or increase lean muscle.
Weight training has the ability to do both at once. Creating new muscle increases metabolism to reduce fat when combined with the right diet.
Most people find after a few week of increased activity their energy levels start to increase.
Weight training also reduces the % of effort used to perform tasks making them easier to do.