How to gain weight and muscle?

[Mister Havisham]

Eat+Sleep+Lift

I have found eating to be the hardest part over the past 2 years and am sick of eating.
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Stinky at the end of the day and headed into the shower? Might as well take time out to do a couple of two-minute rounds of rope jumping first.

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Disaagree with jumping rope to gain lbs.

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Most importantly, even if you can't take an hour, you can always find five minutes here or there.

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Agreed. If you do 3 sets of an exercise with hour of rest in between sets, it can still help you gain lbs.

You can do a variety of stuff of in your room:
Bodyweight exercises
Improvise with furniture
Buy a barbell or someting and use it there

Be careful of overtraining. Instead of overtraining, if you have a "spare hour" better to buy/prepare/consume food if you want to gain lbs.