I am a 19 year old male and recently restarted doing running after around one year. I am very thin and would like to become bigger and fatter.
Ocassionally (actually quite often), I feel tired and unmotivated to go running. But in order to keep the habit and the schedule going, I just go and run at a speed slower than I normally would run at. This way I follow the schedule but am not really doing the 100% training everyday.
Recently, I wondered whether it would be more beneficial for me to not go running at all the days I feel tired and unmotivated because when running slowly, my speed is much slower than my normal running speed. Maybe my body develops the habit of running at slow speed and so in long run my speed gradually decreases. Moreover, maybe resting the body will make me more faster for the future running sessions.
So my question is, should I stop running slowly and instead either go and do 100% training or not go at all.
(I run around 5-6 km 6 times a week)