Increase your calore intake and try to do less cardio?

Celebrate!!!!!! you will live to be 100

Wait till you're 30....I was the same way and I do the same thing for a living and I too am 5'9", but now, at 37, I'm 5'9" and 220 instead of 165.

Well, for one thing you are sweating off and working off by exercise and stress everything you are eating. If you want to gain weight, eat more calories per day and maybe ride abit less slowly to work each day.

You look down alot at your job. Focus on posture. The first part of getting bigger is strengthening your back. Work on getting the top of your scapulas working with your neck. Turn your head in different streches. You cannot grow with out full range of motion. And there are alot of them. Hunching over at work and on you bike and everytime you are stressed and everytime someone calls you scronny and everytime you cant sleep on your back so you sleep on your side unbalancing your shoulders and throwing your symitry all out of wack. In order to overcome this you need loose muscles. They will not grow if they are tite. So eat NONTRANSFAT at night (custerd or cottage cheese)so when your muscles are repairing themselves you will store some fat and elasticity and strech in the morning so you are not tense. Breath deep, very deep and look strait up and then slowly back. This will strech out the front of your neck(yes your neck) If you do it right the first time you might cough from pressure on your wind pipe(that is good).

Here is what I did to go from 135 lbs to 172 lbs with high metabolism: 1.)I lift weights three times a week with atleast one day of rest in between. I exercise my whole body, and I only do compound exercises. I don't go in the gym and do bicep curls for hours. I do deadlifts, squats, high-pulls, pull-ups, bent-over rows, bench press, push press, barbell cleans, just to name a few. They all require multiple muscle groups. I superset some of my exercises such as bench pressing and pull-ups or squats and upright rows. Deadlifting takes a lot of energy so I wouldn't superset that, but you can if you wish. I rest roughly around 2 minutes per set. 2.)I do cardio twice a week. When you are gaining weight, you will gain fat. It is up to you to keep fat at a minimum while gaining weight. I do quick but intense cardio. I like running on the treadmill but you can choose whatever types you like. I would run extremely fast till I am tired, and then I would jog very slowly till I regain my stamina to run fast again. I would keep repeating that till I have done about 20 minutes of cardio. This is great for your metabolism. I will burn calories as I am resting, such as watching TV or hanging out with friends. A short cardio will have little impact on your muscles, but long, boring cardio and doing them everyday will make you lose muscles. 3.)I get 6+ hours of sleep every night. I know you see on television, magazines, or heard from experts that you should get 8 hours of sleep per night, but if you have a very busy life, 6 hours will do. This keeps your metabolism going, and great for gaining mass when you get enough sleep for your body to recover. 4.)I try to eat healthy as much as I can. We all have a life, which means our friends and family would ask us to go out for dinner. I try to limit myself from eating unhealthy once every 2 weeks. When you go out to eat, try to pick the healthiest choices. 5.)I try to eat atleast 6 times a day. I never miss breakfast. I start my day off with one cup of raw oatmeal, one fruit (usually banana or orange), and drink plain green tea, one fish oil pill and a Centrum multi-vitamin pill. I used to eat 2 cups of raw oatmeal each day, but I readjusted because I was building up more fat faster than muscles. I might eat 1 and 1/2 cup soon because my weight is starting to plateau. I do want to get up to 180 lbs. When I have to go to school or work, I make a casein protein shake (slow digesting protein) to drink at school/work, and I have 4-6 slices of plain whole-wheat bread to eat while driving to either places. 6.)I take in about 180-200g of protein per day (workout days are usually 200g and non-workout days are usually around 180g), 400-500g of carbs, and roughly around 100g of healthy fats (olive oil, grounded flax seeds, fish oil, whole-grains, lean meats, unsalted nuts) per day. I ate less before I became 172 lbs. so just adjust according to your bodyweight. I'm going to have to increase my calorie intake because I'm stuck at 171-172 lbs. NOTE: Take 1g - 1.5g of protein per bodyweight. Take protein according to your own bodyweight and seperate them throughout the day. For carbs, take in 2-4g of carbs per bodyweight to for gaining mass. 7.)Right before I workout, I eat a small healthy snack. Whey protein shake, a fruit, and 2 slices of whole-wheat. Right after working out, I drink another whey protein shake, 8 slices of white bread with jams, a cup of honey with water(I wish I have real raw honey, but regular supermarket honey will do the job for now), and a fruit all within 2 hours after working out for recovery. This is the only time you can eat starchy carbs guilt-free because your body will use it all for recovery. Do not eat starchy carbs or high in saturated fat food right before working out because you would be exhausted, and your metabolism will drastically slow down. To gain mass, you must sacrifice losing weight and saying good-bye to your abs if you have your 6 pack. Right now, I am still in very good shape without too much fat. I can still see the lines of a 6 pack but not great definition. I am bulky right now without much definition.

eat alot of carbs--good carbs--lk whole wheat bread. Also eat alot of protien *peanut butter has alot of protien and fat, which in ur case is a good combo.