Well generally it will be a positive impact (Of course this generally depends on what the "Physical activity" is, it is generally good, reason being while exercising causes the brain to release endorphin's, as well as helping relax muscles and relieve physical tension, which can greatly help with stress.
The answer to your question is really easy, it’s the first option. Dehydration
Transportation laws <span>promoting safety precautions, such as the helmet law, lead to an increase in public health. Legislation on speed limits, drunk driving are a few of the most obvious examples. </span><span> Wearing a helmet, without question, reduces a rider's risk of injury. However, </span><span>Public education and </span>infrastructure upgrades<span>, protect riders considerably even before helmets come into the scene. </span>
