Of course, you know what it feels like to have a tight muscle. But tight hips aren't just uncomfortable—they can lead to all sorts of other aches and pains, especially in the lower back. "People focus on the hips and say their hips are tight, but we don't always think about the fact that the lower back connects to our legs at the hip," Charlee Atkins, C.S.C.S., instructor at Soul Annex in New York City and creator of Le Stretch class, tells SELF. Tight hip flexors make it harder for your pelvis to rotate properly, which can cause your lower back to overcompensate, "and this can be a setup for lower-back injury," Teo Mendez, M.D., an orthopedic surgeon at NY Orthopedics who focuses on operative and non-operative management of sports-related injuries, musculoskeletal injuries, and arthritis, tells SELF.
How can the muscle progress just because you held a weight for awhile when you could of held a heavier weight for less time? It won’t. It won’t grow because it’s not receiving new tension. Extending the rep by going slower is great, yes, but this slow must be the actual bar speed and not just slow because you can make it slow. You create actual bar speed by making light weight feel heavy. So lift light weight so that the fibers have to switch when it starts to feel heavy. This will increase your strength compared to just lifting heavier right away or all the time. This will help create an actual tempo with actual weights. Remember my example above about how the overall weight after making light weights feel heavy? This is because your muscles have sensed a level of tension that altered its force production so now you have to lift less, yet work harder. Read that again :) this is growth. This is how muscles sense it needs to grow. If you keep the same weight and never increase the weight, then you keep the same tension. This same tension is not enough to create new tension. Remember when I talked about failure? Well, the point where the fatigue of failure comes into play alters as well. It takes less time. That’s the point. Not much time is needed for growth, just break down the muscle as much as it can to a healthy level and do it again. Keep doing it and keep trying to increase the weight.
An upper/lower split can last you forever. A lot of massive, strong powerlifters stick with that throughout their entire lifting careers. However, if you’re older and/or have some trouble recovering, you may prefer a push/pull/legs split that has you training everything directly once per week. This is how most famous bodybuilders have trained in the past and many still do.

(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.
A: The literature supports roughly 0.8-1 gram per pound of bodyweight in young adults. Can you eat more? As long as you have healthy, functioning kidneys, yes. Will you receive any further physiological benefit from it? Most likely, no. Not only that, since our calories are set, if we choose to overconsume protein then we must reduce either carbohydrates and/or fat in order to keep caloric expenditure within our set range. Once protein needs are met (~0.8-1g/lb of bodyweight) you will likely see greater benefits from higher carbohydrate consumptions given the influence they have on anabolism and the anaerobic energy pathway. However, as I mentioned above, these recommendations will differ for older trainees given the blunted anabolic response from the ingestion of amino acids. 
(3) This is where I explain the parentheses: The liver and the muscles contain glucose storages. Glucose all chilling together hanging out stored is/are called glycogen. When these storages become full, then glucose will spill over and get stored in our fat cells just like fat does. Why? The glucose “needs to go somewhere”, it’s not just gonna chill circulating around the body. (I’ll explain “needs to go somewhere” in point 6) FAT does not mean looking like Santa, fat is stored energy. Carbs only lead to fat gain when there is a spillover. Fats only lead to fat gain when that fat isn’t used for energy. *keep reading
The main work of your hip flexors is to bring your knee toward your chest and to bend at the waist. Symptoms associated with a hip flexor strain can range from mild to severe and can impact your mobility. If you don’t rest and seek treatment, your hip flexor strain symptoms could get worse. But there are many at-home activities and remedies that can help reduce hip flexor strain symptoms.
If you’re a beginner, you should train with three full-body workouts per week. In each one, do a compound pushing movement (like a bench press), a compound pulling movement (like a chinup), and a compound lower-body exercise (squat, trap-bar deadlift, for example). If you want to add in 1–2 other exercises like loaded carries or kettlebell swings as a finisher, that’s fine, but three exercises is enough to work the whole body.
Having a strong butt will get you far—literally. Our glutes are responsible for powering us through everything from long runs to tough strength workouts to a simple jaunt up a flight of stairs. Strong glutes that can take on the brunt of the work can help us avoid overcompensating with smaller muscles during lower-body exercises. Plus, beyond just helping us move, the glutes play an important role in "stabilizing our entire lumbo-pelvic-hip complex," says Cori Lefkowith, NASM-certified personal trainer and owner of Redefining Strength in Costa Mesa, California. That translates to better form, more efficient movement, and a reduced risk of straining your lower back and hips.
Firstly, let’s establish where your glutes are and what they actually refer to! Your ‘glutes’ — or your gluteal muscles, as they are more formally known — refer to the muscles in your butt. Specifically, there are three major muscles in this area: your gluteus maximus (the main, large muscle that shapes your backside), your gluteus medius and your gluteus minimus (two smaller muscles that assist the gluteus maximus in moving your body).