If a woman ate 1500 calories a day, along with some exercise, she would be able to lose about 1 pound a week. For a male, eat 2000 calories a day with some exercise, and you should also lose about 1 pound of weight a week. If you actually meant to say 100 calories per day, I would say you're crazy. A 10 month BABY needs around 820 calories each day. Now I can safely assume that you are NOT a 10 month old baby, therefore if you are eating 100 calories per day, then you are depriving your body in an extremely dangerous way.
While you can get tests to evaluate the cortisol level in your blood, only you can determine your own innate level of stress. Take some time to evaluate if you are living in a constant (or close to constant) state of stress. You might also notice increased anxiety levels, mood swings, trouble sleeping, fatigue (including feeling tired but unable to wind down) and high blood pressure.
"With all the different tips out there, it can be tricky to understand exactly which exercises work the best. HIIT is great for fat burning and will get your heart rate up, but I’d also recommend including strength (resistance) exercises too. Try lifting weights, using resistance bands or using the weight machines at the gym as these will increase your metabolism to help with weight loss, and increase your muscle strength. It’s important to mix-up your whole-body workouts so you don’t get bored."
Motivation and encouragement: Every person has different needs when it comes to what motivates them to succeed. Think about how you have met other important goals, or quit bad habits in the past. Would you be more likely to succeed using social media, in-person meetings with strangers or acquaintances, or expert counseling using text messaging, phone calls or email?
Tapsell, L. C., Dunning, A., Warensjo, E., Lyons-Wall, P., & Dehlsen, K. (2014). Effects of vegetable consumption on weight loss: A review of the evidence with implications for design of randomized controlled trials [Abstract]. Critical Reviews in Food Science and Nutrition, 54(12), 1529–1538. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/24580555
Eat Breakfast Every Day. One habit that's common to many people who have lost weight and kept it off is eating breakfast every day. "Many people think skipping breakfast is a great way to cut calories, but they usually end up eating more throughout the day, says Elizabeth Ward, MS, RD, author of The Pocket Idiot's Guide to the New Food Pyramids. "Studies show people who eat breakfast have lower BMIs than breakfast-skippers and perform better, whether at school or in the boardroom." Try a bowl of whole-grain cereal topped with fruit and low-fat dairy for a quick and nutritious start to your day.