How long does your body need to rest between muscle training workouts?

How can a person  best  reduce the risk of injuries on the road?  

What typically happens when a family member has a problem with alcohol or drugs? adults in the family are affected more than children children in the family are affected more than adults. the entire family is affected. no one in the family is affected.

How can the stress response be used in a way. for example to build resilience.