However, if this is the point where you jump up from your chair, point at your computer screen and shout ‘Quackery!”, don’t be so hasty. A plethora of scientific studies give credence to the biohackers’ icy claims. A 2008 study published by the National Institutes of Health found that cold showers may serve as an antidepressant. Meanwhile, a 2014 study found it may benefit a whole host of bodily systems, from pain management to pulmonary diseases, asthma, fatigue, anxiety, and more.

It’s worth pointing out, though, that while the signs do look promising, not everyone is convinced. A 2016 study found that although people taking cold showers took fewer sick days from work, they didn’t necessarily experience fewer days of ill health. Nor, it should be noted, is immersing yourself in cold water suitable for everyone.

Those with heart conditions, or at genetic risk of stroke would do well to consult their GP before diving in. Likewise, it’s inadvisable to encourage a pregnant partner to start their day off in this way without seeking professional input first.

Right, that’s the health and safety boxes ticked. Now onto the bona-fide benefits.

7 Science-Backed Benefits Of Cold Showers

If you’re still not convinced that cold showers are the best way to start your day, this breakdown of science-backed advantages may help change your mind. And if it doesn’t, give it a go anyway. It’s best to face your fears head on, after all. Just have a towel handy.

1. It May Help Fight Long-Term Depression

There’s a difference between feeling down, and being depressed. But, with one in four of us likely to suffer from some form of mental health condition in our lives, it pays to be open minded when it comes to treatments. A 2014 study published in the journal Medical Hypotheses predicted that 2-3 minutes of exposure to 20 degree celsius water over several months would “send an overwhelming amount of electrical impulses from peripheral nerve endings to the brain, which could result in an anti-depressive effect.”