umm....
it depends on which way you approach your goal.
if you are 50-12 pounds, you will need 49 more years or straight working out. 4 hours a day.
if you are 100+ pounds, you can take some steroids, which you can get from drug dealers for about 30$ per syringe. it will achieve great results by 4 days of 8 doses.
If the skinny person doesn't take drugs then yeah.
It all depend on the person running the 20k. Are they a pro, fat, skinny, and how often they run.
Doing crunches does not make you skinny. Eating less calories than you burn and being active (cardio exercise) will make you skinny.
The best place to find weight gaining supplements for a skinny guy would be a health store such as GNC. I would look for supplements with extra protein to build muscle.
wha?
How much weight you need to lose to become skinny will determine how much time it will take. It will take at least a year to become very thin if you are 240 pounds.
Take on a Martial Arts class. Usually technique is better than all muscle. If you know how to fight, and he doesn't, you can win.
It could take days for certain muscle relaxers to leave your system. Most muscle relaxers will leave your system within 24 hours.
This depends on what sphnicter muscle you are talking about, because there is more than one sphincter muscle in a cow.
Not long. It depends on your feelings about that person.
47 Days
The time it takes to develop a buff chest varies depending on factors like genetics, workout intensity, nutrition, and consistency. With a proper workout program, diet, and dedication, it may take a few months to a year for a skinny teen to see noticeable results in chest muscle growth. Remember to prioritize proper form, rest, and recovery to avoid injury.