Questions related to staying healthy or dealing with health issues during outdoor activities. Answers given here are not intended as a replacement for professional medical advice. Please do not use this tag to ask for specific medical advice. A Dr should always be consulted to confirm any advice ...

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15
votes
2answers
3k views

How harmful is the rising/setting sun?

Often, while hiking, my companions and I treat the very early/late sun as being less harmful (as far as skin cancer and UV radiation are concerned). For example, we might not apply sunscreen ...
6
votes
1answer
1k views

Is freeze-dried food healthy?

I've recently heard an opinion (from a sailor that attempted to beat a 122 day, westward route, around the world sailing record) that freeze-dried food is actually very healthy, as it contains less ...
18
votes
2answers
341 views

What can I do to prevent altitude sickness?

I will be going above 15000 feet (4500 meters) on a trip next month, and I've heard people will often get altitude sickness. Is there anything I can do beforehand to prevent sickness or take while I'm ...
14
votes
1answer
205 views

Is there simple guidance on sunburn risk associated with altitude?

When skiing, if the weather is good, I often come back with a better tan than if I have been at the beach. Obviously with altitude, there is less blocking of UV rays by the atmosphere. But how much ...
13
votes
3answers
702 views

What are the vitamin considerations for extended backpacking

For short hikes you can generally ignore nutritional concerns, because you don't generally become malnourished in two days. However, for a long trip like the Appalachian Trail or other long hikes (at ...
3
votes
1answer
668 views

How can I relieve knee muscle contractions?

Often times I find myself with cramps in the muscles on the sides of my knees (or the ligaments, I am not sure which). This happens most often during or after a sustained inclined climb. What should I ...
21
votes
5answers
2k views

How bad do circumstances need to be before activating a PLB?

Personal Locator Beacons (PLBs) can be carried during outdoor activities to use in case of an emergency. But are there any guidelines on what exactly constitutes an "emergency"? For example, what ...