Can cold showers increase speed?

Sources:

Taking cold showers before aerobic activities like running can enhance performance by increasing the body's capacity to absorb excess heat. This results in slower heat build-up, allowing for either increased speed or greater endurance. Specifically, a cool shower before a long run can delay the point at which you start to sweat and overheat, potentially leading to improved performance in terms of speed 1.

Cold Showers

Craig explains that taking a cold shower before aerobic activity can increase the body's capacity to absorb excess heat, leading to a potential increase in speed or distance. The duration of the shower only needs to be a few minutes to extract the heat.

Huberman Lab

Dr. Craig Heller: Using Temperature for Performance, Brain & Body Health | Huberman Lab Podcast #40
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