PubHawk
September 2018 PMID 29157042

Head-out immersion in hot water increases serum BDNF in healthy males.

Daisuke Kojima, Takeshi Nakamura, Motohiko Banno, Yasunori Umemoto, Tokio Kinoshita, Yuko Ishida, Fumihiro Tajima

Download social card

Mentions

15
Peak: 4 in Jan 2020
across 4 sources since Jan 2020

Extended reach

171,195
potential audience

Total likes

2,852

Video views

123,165

Mentions per month

Jan 2020 – Jun 2024

Where it's discussed

  • X / Twitter8 posts
  • News3 articles
  • YouTube2 videos
  • Facebook2 posts

AI synopsis

What people are saying

Participants express strong interest by highlighting the benefits of heat therapy for brain health, such as references to increased BDNF boosting neuron growth and recovery after injury, with some posts supporting the article’s findings and others elaborating on related studies on sauna use and hormonal effects. The tone is optimistic and explorative, demonstrating active engagement and curiosity about implications for health and cognitive performance.

AgreementModerate agreement

Most discussions acknowledge the positive effects of heat therapy on BDNF and neural health, with some explicitly supporting the findings.

InterestHigh interest

Posts show high curiosity about the potential brain benefits, referencing related topics like sauna use and cognitive enhancement.

EngagementHigh engagement

There is deep engagement with the topic, with users discussing mechanisms, implications for health, and citing various studies.

ImpactModerate impact

While the discussions recognize important potential benefits, they mainly emphasize a promising direction rather than immediate widespread impact.

Abstract in brief

  • The study found that 20 minutes of headout water immersion at 42°C (hot water) increased serum BDNF levels in healthy men, likely due to hyperthermia, with levels returning to normal after 30 minutes.
  • Core body temperature rose during hot water immersion, but there were no significant changes during neutral temperature immersion, indicating temperature's role in BDNF increase.
  • Other factors like cortisol, S100, platelet, and monocyte counts stayed stable, suggesting that the BDNF increase was specifically related to heat exposure and not other immune or blood changes.
Read the full abstract

Top posts

Most liked on X and Bluesky
Colin Matson
@thecolinmatson · X

BDNF is a protein that acts on neurons in the central and peripheral nervous systems to promote the growth of new neurons. https://t.co/7SCPwMbmEx Sauna ALSO increases norepinephrine and prolactin - two hormones that play a key role in focus & mental function.

Feb 20, 2023 · 12 likes · 7,503 followers View post →
Marc Arginteanu, MD
@ArginteanuMarc · X

Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons -thrive, grow and mature -survive after injuries(stroke or trauma) -improve hippocampus and basal forebrain(learning and memory) https://t.co/ASo4XfUgVS

Jan 18, 2020 · 9 likes · 4 shares · 35,364 followers View post →
Shortcut U
@SHRTCTU · X

Also, there is data suggesting that sauna-use can augment endurance training outcomes/performance, as well as data showing neural benefits from other types of heat therapy that likely also result from using the sauna. https://t.co/NIvuMClIoG https://t.co/34Z5AptHVz

Sep 28, 2023 · 1 like · 51 followers View post →
Tamra E. Raven
@tamraraven · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Apr 29, 2020 · 4 shares · 3,063 followers View post →
crazy
@crazyfromlsd · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Jan 18, 2020 · 4 shares · 1,750 followers View post →
owner
@owner11939407 · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Jan 18, 2020 · 4 shares · 121 followers View post →

All mentions

Shortcut U
@SHRTCTU · X

Also, there is data suggesting that sauna-use can augment endurance training outcomes/performance, as well as data showing neural benefits from other types of heat therapy that likely also result from using the sauna. https://t.co/NIvuMClIoG https://t.co/34Z5AptHVz

Sep 28, 2023 · 1 like · 51 followers View post →
Colin Matson
@thecolinmatson · X

BDNF is a protein that acts on neurons in the central and peripheral nervous systems to promote the growth of new neurons. https://t.co/7SCPwMbmEx Sauna ALSO increases norepinephrine and prolactin - two hormones that play a key role in focus & mental function.

Feb 20, 2023 · 12 likes · 7,503 followers View post →
Shortcut U
@SHRTCTU · X

Check out what I found interesting in Kojima et al.'s, study on how head-out, hot water immersion impacts serum brain-derived neurotrophic factor: https://t.co/NIvuMClIoG

Feb 5, 2023 · 51 followers View post →
Tamra E. Raven
@tamraraven · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Apr 29, 2020 · 4 shares · 3,063 followers View post →
owner
@owner11939407 · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Jan 18, 2020 · 4 shares · 121 followers View post →
Lynne
@lynnemaren1 · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Jan 18, 2020 · 4 shares · 88 followers View post →
crazy
@crazyfromlsd · X

RT @ArginteanuMarc: Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons…

Jan 18, 2020 · 4 shares · 1,750 followers View post →
Marc Arginteanu, MD
@ArginteanuMarc · X

Hot showers are good for your brain increase production of BDNF(brain derived neurotrophic factor) BDNF helps neurons -thrive, grow and mature -survive after injuries(stroke or trauma) -improve hippocampus and basal forebrain(learning and memory) https://t.co/ASo4XfUgVS

Jan 18, 2020 · 9 likes · 4 shares · 35,364 followers View post →