Bieber explained to his fans in a post Monday that he is not touring or releasing new music because he is \"very focused on repairing some of the deep rooted issues that I have as most of us have, so that I don’t fall apart, so that I can sustain my marriage and be the father I want to be.”

Hyperbaric chambers have not been scientifically proven to improve mental health. The chambers are used off-label as a treatment for various conditions, including depression and anxiety, according to Eileen Comia, an integrated medicine specialist at Advance Biomedical Treatment Center in Connecticut.

“There is a good feeling and uplifting of the mood because it also increases serotonin and you feel energized,” she said. “Pain is decreased. You feel good afterwards.”

\"VIDEO:
ABCNews.com
VIDEO: Justin Bieber says he sleeps in hyperbaric oxygen chamber to treat depression
>

A hyperbaric chamber allows the patient to breathe in oxygen at air pressure levels 1.5 to 3 times higher than average, according to Johns Hopkins Medicine, a health system headquartered in Baltimore, Maryland.

The treatment is typically performed as an outpatient procedure and doesn't require hospitalization. At-home chambers, like the one seen in Bieber's video, are now being offered online for purchase and rent.

\"PHOTO:
Josiah Kamau/BuzzFoto via Getty Images, FILE
PHOTO: Justin Bieber and Hailey Baldwin are seen in New York City, July 5, 2018.
>

There are risks associated with the treatment, including eye damage, middle ear injury, lung injuries and fire, according to Dr. Jennifer Ashton, ABC News chief medical correspondent.

\"Certain complementary therapies, even if they haven’t been fully borne out in the medical literature, as long as they’re low risk, if they offer some benefit, like yoga or acupuncture, things like that, then it’s OK,\" she said. \"But anytime you’re talking about a major risk with something that is not FDA cleared or approved, you really need to proceed with caution.\"

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