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Jeff.Donohue

Why you stink so horribly...

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So here's an interesting thing I discovered:

Every time I'd come home from skydiving, the T-shirt I'd wear would smell terribly. I mean really nasty.

I'm not OCD or anything, but I'm a relatively clean guy (I like my shower time!). But I was amazed at how much stinkier my t-shirt would be after a day of skydiving than, for example, a 10 mile run.

This puzzled me: I figured I probably would sweat a lot more on a long run than on, for example, a skydive (and I still think that's true). So why the difference in aroma?

I thought I was emitting "fear pheromones" or something, but I'm a lawyer, not a scientist... Whenever I get puzzled by things biological ("you mean he puts THAT in her WHAT?"), I ask my microbiologist friend for an explanation. Here's what I learned from her:

"Sweat is different for anxiety than exertion. When you work out it is salty sweat (eccrine); stress sweat (apocrine) has a lot of lipids. The bacteria loooooove the lipids, and that's what you smell (the bacterial by-products, actually). Additionally, more testosterone results in more apocrine, which is why guys' stress sweat smells so much worse..."

I realize that I'm probably reducing the chances of anyone sitting next to me on the next lift up, but I thought you might find this interesting from an "Ask Dr. Science" perspective.

Now where's my Right Guard?

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I tend to be a bit ripe after skydiving. I think it is because I sweat for a bit then stop. Repeat this throughout the day and the aroma/funk just builds up.:S I try and be considerate by wet toweling mid day if I think it could be a stanky day of jumping.
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I think its the changes in our body tempurature consistantly again and again over the course of the day. From 60F to 100F, altitude to the ground. I think it messes up our body a bit in regards to sweating.
--"When I die, may I be surrounded by scattered chrome and burning gasoline."

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