Immunity and Tennis: 4 Ways for Tennis Players to Boost their Immune System (Tennis and the Coronavirus Lockdown)

4 Ways for Tennis Players to Boost their Immune System
1. Add Protein Whey
2. Think Zinc
3. Keep Sunny
4. Sleep It Off

Courtesy: Four Ways Tennis Players Can Build A Stronger Immune System, Tennis Life Magazine (Karen Fishman, March 11, 2015)