The typical needs are water and a little more water. The water re-hydrates our body and the cooler water entering the system cools it down. Soda and beer don't make good sense for the real hot days. Sure, it may seem like the right thing to HIT THE SPOT but the reality is, it don't. Returning the water to our system is a welcome to our brains that in turn refreshes the body much better than the other fluids.
Sport drinks loaded with the carbohydrates and sugars also have a positive impact on our bodies.
These are short-term fixes that quickly dissipate and return us to the need for water. Keeping a small, wet towel in a cooler to put around your neck can also make the day seem a little nicer. The cooler mass close to the brain tends to lower our body temperatures to a manageable degree. Just remember in the morning what the day may bring and be prepared. Now, the human factor is taken care of how about the Bass Factor.