There is an endorphin called met enkephalin that is released in the highest concentration the first time you challenge your body to a new “stress” (in this case, exercise). Every time you repeat that stress, it is released in lower and lower doses (I think it will eventually plateau but i have to confirm that). My point is, it is LITERALLY less taxing on your body to push through a challenge and persevere. The best part is that Beta endorphins are generally released in the same concentration every time you physically “stress” your body. So — consistent happiness and decreasing misery :) Push through!!

P.s.- i promise i will dig up the article i learned this from in the morning but spare me for the evening because I’m half asleep and don’t want to research atm