A teaspoon of sodium bicarbonate, commonly known as baking soda, diluted in one liter of water, can be used as a homemade remedy to prevent or soothe muscle cramps and soreness due to heavy physical activity.
Tired muscles release lactic acid in the blood by making it more acidic; baking soda, as an antacid buffer, counteracts this increased acidity and therefore reduces muscle painfulness and improves contraction.
And with summer travel and heat wave in so many parts of the world remember that good hydration…lots of water (no soda please).