Skip to main content

Sleep in the dark

I've mentioned this before - the importance of sleeping in the dark to our health.

Here is more on the same idea:

Artificial Light Suppresses Melatonin, Boosts Cancer

University of Haifa researchers found evidence that Light At Night (LAN) has harmful health effects. Bright city lights might boost your risks of cancer by suppressing melatonin production.

Update - Michael has more on this here.

Comments

Chris D said…
This study does not highlight the importance of sleeping in the dark at all.

Lately this blog has been drawing some rash conclusions.

Rather it suggests that those who live in areas where they are exposed to lighting after the sun goes down should supplement with melatonin.
Chris said…
....er calm down a bit there.

Think about that a bit more...extrapolate, get creative. Why supplement with melatonin if you could allow the body to produce melatonin by well, maybe sleeping in the dark, i.e. avoiding artificial light at night?

What is rash about that thinking?

What other examples of rash conclusions are you referring to?
Mike said…
I, and others, appreciate the time and effort you put in posting interesting studies, Chris. This is one of my top-five "to-to" blogs for health/longevity/performance related science. Keep it up, and pay no attention to the folks that haven't gotten enough sleep. :)
Anonymous said…
What I've never found out is how does the light 'get into' a person. Is it through the eyes (thus cover the eyes at night) or through the skin (in which case total darkness in the room is necessary). Or - boggle - through something else?
Anyone know?

Popular posts from this blog

Dry January

I mentioned a few weeks ago that I was taking part in "Dry January".  I didn't make a big song and dance about it, but I decided to go for a calendar month or so with no alcohol.  A few people have asked me about my experience, so here are a few points. Why take a break from drinking? Alcohol is an interesting topic.  As a drug it is widely accepted in society, central to so much of our socialising and leisure.  There seem to be lots of health benefits - so we are told - yet there are also a lot of problems in terms of health, relationships and lifestyle that come from drinking. Over a few years I'd begun to become aware and then concerned that I was drinking too much and too regularly.  I am in a busy and stressful job and sometimes a glass of wine after work to relax is really helpful.  But over time, one glass became two.  Two glasses became ....I might as well finish the bottle.  A habit got established....and was starting to get too e...

So where have I been?

You will have noticed that this blog has been quiet for a while....  There are a few reasons for that, reasons that I thought I'd list here: WORK -  my day job has been incredibly busy and stressful this year. Working 10-14 hour days the last thing on my mind when I got home was putting something on here.  FACEBOOK/TWITTER - I suppose I've been using other channels to do some of what I used to do here. Quick fire posts pointing to interesting studies or news etc tend to get posted to Twitter (@chrishighcock) or to the Facebook Hillfit group http://www.facebook.com/groups/263083947097000/  REASSESSMENT - I've found myself less comfortable with some of the positions I've taken in the past. Sometimes I'm embarrassed by some of the things I've promoted. I'm not Paleo or low carb. I think Tabata and intervals are misunderstood and misapplied. I cannot really claim to be HIT.   I find myselfunable  honestly to post things on here and pretend that I am some sort o...

Taking up space for a brief update

I've a couple of posts in draft that I will get up soon -  an update / reflection on Dry January and some thoughts on the scheduling benefits of short workouts if your life is busy.  Before that though, I am pointing to something else. However, I wanted to highlight something that is coming this weekend that I've been involved in.   Amber Rogers (Gokaleo and author of Taking Up Space ) has been pulling together a bundle of books from various authors with a common theme, one that I've been pushing here recently.   Keep it simple, avoid the hype, be patient, be consistent and flee the gurus.   I've talked before about how we get obsessed with pushing for more and more, when enough is OK.  I've given my view that so much of the health and fitness internet world is more like a gnostic religion than something that will benefit your life. There are other voices out there saying similar things and I'll be pointing to a bundle of books later this week ...