"Should one be shaving on a lengthy high altitude trek?" shall be the question that I'd like to ask to great mountaineers with wisdom in high-altitude mountaineering. If you have observed, there are so many mountaineers who do not prefer (or should I say bother?) to shave during an expedition.
Has it got any scientific or significant reason for they being aberrant, beyond the lethargic approach of being socially good? (Culture is different up there at the mountains)
Of course, a shaving trimmer is a handy instrument to take along, what are the pros and cons of shaving against not shaving, and vice versa?
For example, having a face covered with beard can really keep your jaws from freezing? But, then do we jeopardize the hygiene, as we may not face wash everyday?
P.S.: I am restricting the scope of the question to Facial Hair only.