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Do Stim-Free Pre-Workouts Make Sense?

Stimulant-free pre-workout supplements have gained popularity among individuals seeking energy-boosting and performance-enhancing benefits without the use of stimulants like caffeine or other similar compounds. While stimulant-based pre-workouts are prevalent, stimulant-free alternatives have their merits and can be beneficial for certain individuals based on their fitness goals , preferences, and tolerance to stimulants. Here's an exploration of whether stim-free pre-workouts make sense: Benefits of Stim-Free Pre-Workouts: Reduced Dependency and Tolerance: Some people are sensitive to stimulants or may have developed a tolerance over time, requiring higher doses for the same effect. Stim-free pre-workouts offer an option to avoid dependency or tolerance buildup associated with stimulant use. Avoiding Side Effects: Stimulants like caffeine can cause jitteriness, increased heart rate, or disrupted sleep patterns in some individuals. Stimulant-free options eliminate these side
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Everything you’ve ever wanted to know about muscles

 

Welcome to PopSci Muscle Month! We kick off the season with FAQs on all muscle-related topics, based on popular internet research and inquiries from our staff. Do you have a question that we haven't answered? Let us know on Twitter. read more. webcomputerworld

What exactly is a muscle?

Muscles form when specialized long, tubular cells known as myocytes come together in a process called myogenesis. These fibers are distributed throughout our bodies and come in many different shapes, sizes and shapes, says David Putrino, a physical therapist at the Icahn School of Medicine at Mount Sinai in New York and director of Rehabilitation Innovation for Mount Sinai Health System.

The human body has three types of muscle cells: skeletal, smooth, and cardiac muscle cells. Smooth muscle lines the inside of all of our hollow organs, such as the intestines and stomach. That is with the exception of the heart, which contains the heart muscles (hence the name). Both heart muscles and smooth muscles are involuntary, which means we can't tell them to contract or relax. Instead, their movement is regulated by a precise neural dance formulated by our autonomic nervous system.

The muscles most of us are familiar with, Putrino says, are skeletal muscles. These include the familiar ones like the hamstrings, quadriceps, calves, and the illusory external and internal obliques. "Each skeletal muscle is a discrete organ that connects to our skeleton," Putrino says, "and is responsible for allowing our body to move."

Just to clarify: is the heart an organ or a muscle?

The heart is an organ, albeit a complex one. Again, it contains a specific type of muscle called cardiac muscle, which is found only in the heart and makes up the main tissue within it, Putrino says.

what about the brain

The brain is not a muscle at all. It is an organ made up of nervous tissue. However, you can "train" your brain, so to speak, to boost certain cognitive functions, such as memory and attention.

Around 639 muscles make up the human body. Interestingly, Putrino says, some of us have one or two unique and unusual accessory muscles, "so the number can increase or decrease based on individual variations in our anatomy."

The aptly named gluteus maximus is the largest in the body. ("To be insensitive, that's your 'butt'," says Putrino, or your "butt" for short.) You can thank your glutes for a movement known as hip extension, which allows us humans to perform basic functions like walking and standing, as well as more extreme efforts like running.

The smallest muscle in the human body is the stapedius muscle, Putrino says. But never judge anything by its size: this tiny beast sits on the ear, stabilizing the smallest bone in the body, the stirrup, which is responsible for allowing us to hear the world around us. Of course, everyone would like to think that it takes a lot more muscle to smile than it does to smile. (Happiness abounds!) But the truth is, no one has done a study to prove this, Putrino says. It also depends on how you define a frown or a smile, she says. A scowl definitely requires more muscle than a weak smile. But when it comes to a typical scowl vs. a similarly average smile, it's hard to tell.

Apart from the anecdotes: "I have to name this myth," says Putrino.

What is the most muscular animal?

That's a tough question, Putrino says. "If we're only talking about strength, beetles are definitely the strongest animals on earth and gorillas are the strongest mammals." In other words, she says that elephants have the most individual muscles. "The trunk of an elephant alone has more than 40,000 muscles."

And all animals have similar muscle types, right? What is the difference between light and dark muscle? Does the man have both? The distinguishing factor between light and dark muscle (or "meat" if we think of it as edible meat) is the presence of a protein called myoglobin, Putrino says. Myoglobin is functionally similar to hemoglobin in the blood; both contain iron and are responsible for transporting oxygen to the muscles (myoglobin) and through the bloodstream (hemoglobin). In fact, a high presence of myoglobin in the blood is a sign of extreme muscle injuries such as rhabdomyolysis, which can be life-threatening. read more. healthnutritionhints

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