If you've been listening to any guru-type podcasts recently, you've probably heard people talking about the benefits of cold showers. And if you're anything like me, you've probably rolled your eyes as the host lists off vague benefits such as "toughens you up" and "makes you feel great". Sure, cold showers can make you feel this way and there is nothing wrong with that (I take them all the time for this reason) but is there actually any scientific evidence that cold showers can benefit you, and what do cold showers do for your hair? Let's look at what the science says:
Cold shower studies
So we should start by saying that there have been lots of studies on the benefits of cold showers, and the majority of them have concluded that cold showers can be great for you. One study involving more than 3000 people between the ages of 18 and 65 years old concluded that regular cold showers can reduce the number of sick days people take off work, quite an impressive finding. Many other studies have found that cold showers can benefit the immune system, mental health, and can even help you to sleep.
So how do cold showers help your hair?
Interestingly, we couldn't find any study on the effects of cold showers on hair health. However, we think it's fair to say that if your mental health is doing good and your immune system is stronger, then it is highly likely that your hair will be looking healthier too.
There is some chatter online about how cold water can help to close your pores and cuticles which can keep moisture in and help your hair to look shinier, but without studies, we're reluctant to hang our hat on these claims.