leg day

was doing my legs and someone came up to me and said that I needed to hit my hamstrings more and he said that they looked really small versus my quads. He was an older personal trainer who I see going around the gym and nitpicking people while they work out. Just curious if you think he is right...

I need to build up my leg strength up, I am sick and tired of them lagging my body. I have not weight trained in months and my upper body came back after a week but my lower body when I train it I like have no endurance like I gas out after 5 minutes and can’t even go anymore. Example today I...