&gt;For 1, that&#x27;s a great idea and I really need the exercise. But it&#x27;s ruled out for 4 months of the year due to northern temperatures.<p>There&#x27;s stationary bikes, gyms, etc.<p>Plus, not going outside is an attitude issue. I&#x27;ve gone running a few times in winter, despite having Raynaud&#x27;s syndrome (or something similar, my extremities tend towards ambient temperature unless I&#x27;m jogging or doing something equally strenuous). It&#x27;s doable. Not pleasant and requires some thought and care though.<p>&gt;For 3, won&#x27;t the blue light from the TV cause someone to stay awake? I<p>Any bright screen makes falling asleep harder, fools the body into thinking it&#x27;s daylight. Only something like Kindle with very gentle light doesn&#x27;t make going to sleep harder.