Small method

The secret weapon of shark's second sleep is a special physiological mechanism called "directional release". This mechanism enables sharks to fall asleep quickly and recover their strength in a short time.

Specifically, when sharks feel tired or need to rest, they will take a unique posture, putting their heads and tails in two different positions, thus relaxing their muscles and nerves. This posture can promote blood circulation and oxygen flow, so that sharks can recover their physical strength faster. In addition, sharks can further reduce their physical burden by controlling their heart rate and breathing frequency.

In a word, the secret weapon of shark's second sleep is its unique physiological mechanism, which enables it to fall asleep quickly and recover its physical strength. This mechanism not only helps sharks survive in nature, but also provides inspiration for human beings to help us better cope with fatigue and stress.