Decreased physical activity means decreased endurance and fitness. Seasoned runners don’t take very long to get back, but non-regulars will find that it will take some effort to regain their pre-lockdown fitness levels.
Why do lakes like Sowl Kere and Arekere remain dry even during monsoons? The reasons are often man-made - building over stormwater drains, sewage, excessive borewell digging, etc. But there are solutions too.