Came here to say this too (<a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11598339" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11598339</a>)<p>Forgot to mention what you did, 45 mins of continuous activity will trigger endorphins. Cheapest way to feel euphoria (even in low intensity).<p>Just last week I walked back from the grocery store, taking random turns, with a steep hill at the end. Google Fit[1] tracking some data. 5 miles only, but I felt sweating in a good relaxing way.<p>[1] Google Fit is a very low barrier way to start tracking your exercises. It interprets accelerations good enough to distinguish car, foot or bike move. And you&#x27;re happy when you get that notification buzz telling you did your planned distance|time.