Sports

When is the best time to exercise?
Silkworms could one day repair human tendons stronger than before
Watch John McEnroe take on past versions of himself on the court
The NBA’s Golden State Warriors use data to optimize the fan experience 
Cambridge researchers have created a mathematical model for building muscle 
World-class surfers help kids with disabilities ride the waves
Who to watch for at the Tokyo Paralympics
Holograph tech “teleports” Olympic badminton competition
Toyota’s autonomous shuttle is optimized for Olympians