Why did Hossy start broadcasting on theLetter?

To leave behind a more settled and readable form of content, different from the video format on YouTube, where he can share his thoughts and honest feelings about depression and mental health.

A stock-type writing platform for professionals and experts, with many specialists such as doctors, lawyers, and journalists on board.

What kind of activities does Hossy engage in?

He has been active as a mental health YouTuber since 2014, sharing his experiences with depression and mental health openly, often showing his face.

What corporate services does theLetter offer?

Services include collaboration to create interview articles with expert influencers and a multi-distribution service to deliver high-quality expert articles to media outlets.

Mental Health YouTuber 'Hossy' Launches Newsletter on Professional Writing Platform 'theLetter'

Published May 22, 2026 11:00 PM ・ Updated Jun 14, 2026 7:32 AM ・ 3 min read ・ Source: PR TIMES

Hossy, a mental health YouTuber, has begun publishing a newsletter on 'theLetter,' a writing platform for experts operated by OutNow Inc. He will share in-depth perspectives on mental health as someone with lived experience.

Hossy, a mental health YouTuber, has started publishing on 'theLetter,' a stock-based writing platform for professionals and experts operated by OutNow Inc. (HQ: Chuo-ku, Tokyo; CEO: Itaru Hamamoto).

Hossy's comment: 'I'm Hossy, and I share my experience with mental health and depression on YouTube. Here, I will leave behind thoughts on depression and mental health, as well as daily reflections, awkward feelings, honest opinions, and long-form stories in a format that is a bit calmer and easier to read.'

Hossy's Mental Hack Channel: https://hossymentalhack.theletter.jp/

Hossy's Profile: A mental YouTuber who has been dealing with depression since 2014. He continues to share his experiences via YouTube and social media. As a person with lived experience, he delivers words that only someone who has walked the path can speak. He is the author of 'I tried to cure depression, so I mapped it by effect and difficulty.' His YouTube channel has over 100,000 subscribers.

About theLetter: A professional writing platform for experts including doctors, lawyers, and journalists. Currently, over 1,000 writers are active on the platform.

Corporate Services: Offers professional influencer article collaborations and 'theLetter' multi-distribution services. For more details, visit: https://lp.theletter.jp/showcase

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Source: PR TIMES
Category: News
Organizations: SmartNews+ / ITmedia
Products / services: theLetter

Mental Health YouTuber 'Hossy' Launches Newsletter on Professional Writing Platform 'theLetter'

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