Intensive weight training causes micro-tears to the muscles being trained; this is generally known as microtrauma. These micro-tears in the muscle contribute to the soreness felt after exercise, called delayed onset muscle soreness (DOMS). It is the repair of these micro-traumas that results in muscle growth. Normally, this soreness becomes most apparent a day or two after a workout. However, as muscles become adapted to the exercises, soreness tends to decrease.[22]
Learning to activate your glutes is important so that you can strengthen them. Strong glute muscles are extremely important as these muscles can have a major impact on your overall body strength; your glutes support your core, help to support a range of exercises and compound movements, as well as help avoid muscle imbalances which can lead to decreased mobility. 
(3) Fats make you fat - yes, dietary fats get stored as fat. This is there place to go. Fat from a meal that isn’t used for energy will be stored. But, that doesn’t mean fats make you fat. The only way fats can make one “fat” is if the fat stored from meals STAYS stored. Otherwise, knows as a calorie surplus. In a surplus, there is no time for fat to be used for energy. In a deficit, fat will be used because you “aren’t eating enough” So yes, fats get stored as fat, but only make you fat if you keep them stored.

Lefkowith put together a bodyweight workout, below, that does just that. While weights and resistance bands are great tools for building strength, she says that sometimes it's easier to focus on contracting the right muscles when there's no equipment involved. "You aren't concerned about the numbers you can lift or the reps you can do but what you actually feel working," Lefkowith says.
Bodybuilders also train small muscles with a similar volume, frequency and intensity of their larger muscles. Strength athletes laugh at this. “Curls are a waste of time” is a common phrase you will hear hurled at a bodybuilder. This is SILLY. Although big compound movements should be most people’s resistance training priority, smaller muscle group focus work has some benefits for every athlete. Bicep tears are quite common among strength athletes, especially strong men and powerlifters. This happens because these competitors will lift tremendous weights with their backs, but their biceps are the weak link. Many of these injuries could be prevented with some good old-fashioned bodybuilder type isolation work. If you are only as strong as your weak link, doesn’t it make sense to make those weak links strong ones?
This muscle sits partway under the gluteus maximus and connects the ilium (hip bone) to the side of the upper femur. It helps you externally rotate your leg when it’s extended behind you, and internally rotate your hip when your leg is flexed in front of you. Together with the gluteus minimus, this muscle abducts the hip (moves it outward). This is your chief “side stepping” muscle.
The spine has a natural curvature in it in order to function correctly. With their attachment on the spine and pelvis, tight hip flexors can cause an unnatural curve of the spine called hyperlordosis. Hyperlordosis affects the way forces are distributed in the spine and can cause pain and soreness in the lower back. Other common problems that are associated with hyperlordosis are weak abdominal muscles, weak hamstrings, tight low back muscles, as well as tight hip flexors. This can lead to hip flexor and groin strains and hamstring strains… all around mess!
“Don't get set into one form, adapt it and build your own, and let it grow. Be like water. Empty your mind, be formless, shapeless — like water. Now you put water in a cup, it becomes the cup; You put water into a bottle it becomes the bottle; You put it in a teapot it becomes the teapot. Now water can flow or it can crash. Be water, my friend.” Bruce Lee
Longer rest periods are more ideal for making progressive tension overload happen, and shorter rest periods are more ideal for generating metabolic fatigue. So, if you’re doing an exercise that is better suited for progressive overload (i.e. primary compound exercises), you’re going to want to rest longer between sets to maximize strength output. And if you’re doing an exercise that is better suited for metabolic fatigue (i.e. isolation exercises), you’re going to want to rest less between sets to make that happen. And if you’re doing an exercise that is suited equally for a combination of the two (i.e. secondary compound exercises), you’re usually going to want a moderate rest period somewhere in between.

Overtraining occurs when a bodybuilder has trained to the point where his workload exceeds his recovery capacity. There are many reasons why overtraining occurs, including lack of adequate nutrition, lack of recovery time between workouts, insufficient sleep, and training at a high intensity for too long (a lack of splitting apart workouts). Training at a high intensity too frequently also stimulates the central nervous system (CNS) and can result in a hyperadrenergic state that interferes with sleep patterns.[51] To avoid overtraining, intense frequent training must be met with at least an equal amount of purposeful recovery. Timely provision of carbohydrates, proteins, and various micronutrients such as vitamins, minerals, phytochemicals, even nutritional supplements are acutely critical. A mental disorder informally called “bigorexia” (by analogy with anorexia) may be held accountable of some people overtraining. Sufferers feel as if they are never big enough or muscular enough, which forces them to overtrain in order to try and reach their goal physique.[52]

Stand on your right foot and lift your left foot off the ground. Inhale as you step your left foot backward into a lunge, so that your left knee hovers above the ground. Exhale as you drive through your right heel to rise to a single-leg stance, bringing your left leg forward and up to hip height. Do 10-12 reps. Switch sides. Optional: Load this move by holding a kettlebell at your chest or a dumbbell in each hand.
(11) “you can’t burn fat (lose weight) and build muscle at the same time” - you can. Protein builds muscle. A deficit loses weight. What you can’t do is : You can’t burn fat and store fat at the same time as you burn, then store. You can’t lose weight and gain weight at the same time. BUT, you can do all this in a day. Ever heard “fat burning” stops if you eat carbs? This is because that body can’t burn carbs and burn fat at the same time. It has to be one or the other. So if you are always eating, then you eventually hit a surplus, because the body is always storing fat. It can’t even burn dietary fat and burn body fat at the same time. It’s one or the other. What does this mean? Eating less = burning less = storing less. May be hard to understand over text, but’s it’s the same as: eat carbs = burn carbs = store carbs AND eat fats = burn fats = store fats AND eat carbs and fats = burn carbs and fats = store carbs and fats. Ever head “sugar burner” vs “fat burner”. Well, which one are you eating more? Fats or Carbs? Bingo! Eat more carbs and you burn more carbs = sugar burner. Eat more fats and your burn more fats = fat burner. Make sense? Don’t worry about losing weight and building muscle at the same time, just hit each angle. Protein for muscle. Deficit for weight loss via fat.
When it comes to building muscle, your body only knows or cares about the tension, fatigue and damage an exercise is generating… not the type of equipment you were using when performing that exercise. It really couldn’t give the slightest crap about that. For this reason, ALL types of exercises and ALL types of equipment are capable of stimulating muscle growth.