The ultimate leadership system

Why is a Major General below a Lieutenant General? 10 military ranks

The structure of the United States military relies on a hierarchy designed to maintain operational discipline and distribute leadership across every level of command. Examining 10 main U.S. Military ranks in sequential order reveals the language behind the names.

The rank of Private represents the entry-level enlisted tier in the U.S. Army and U.S. Marine Corps. At this level, service members focus on basic training, mastering tactical skills, and executing orders issued by superior officers.

Etymologically, "private" is short for "private soldier", designating an individual without public office or independent military command. Historical records note that some of the earliest documented uses of the term in the American military context appear in the personal correspondence of George Washington.

A Corporal is responsible for leading small tactical units, such as fireteams or squads. Corporals oversee the daily discipline, appearance, and fundamental skills training of junior soldiers.

The word derives from the French corporal, which stems from the Latin caput (meaning "head"). Over time, the term was influenced by the Latin corpus ("body") and the French military term corps, blending roots for "head" and "body" into the modern word corporal.

A Sergeant is a key frontline leader who typically commands a squad or section and directly supervises daily operations. Sergeants hold direct responsibility for troop welfare, equipment maintenance, and tactical execution.

The word shares its Latin root (serviens, meaning "servant") with the word servant. In medieval times, a "sergeant at arms" served as an armed retainer to a feudal lord. As military structures modernized, the sergeant evolved into the link between commissioned officers and enlisted troops.

The rank of Lieutenant serves as the entry point for commissioned leadership. Lieutenants typically command platoons consisting of 16 to 40 service members alongside an experienced platoon sergeant.

The term comes directly from the French lieu tenant, which literally translates to "place holding". A lieutenant is a placeholder or deputy tasked with standing in for or assisting a superior commander.

A Captain typically commands a company, battery, or troop consisting of 60 to 200 service members. Captains represent one of the oldest military designations in the English language, used as a general term for a military leader since the 1400s. Derived from French and rooted in the Latin caput ("head"), a captain is the "head" of an organized military unit.

A Major serves as a field-grade officer, often functioning as a battalion executive officer or primary staff supervisor. Interestingly, the rank of major is a historical abbreviation of sergeant major. During the 16th and 17th centuries, a sergeant major was a commissioned field officer ranking above a captain. As the boundary between non-commissioned officers and commissioned officers solidified in the 1700s, the "sergeant" prefix was dropped, leaving "Major" as a distinct officer rank.

A Colonel commands brigade-sized formations (1,500 to 3,200 soldiers) or fills critical senior staff positions. The title originates from the Italian colonnello, meaning the leader of a column (colonna) of troops. The unusual English pronunciation ("kernel") occurred because English borrowed the word from French, which had adopted the Italian word but altered its pronunciation, while English retained the French spelling.

A Brigadier General is a one-star general officer who commands a brigade or serves as a deputy commander for a division. The title derives directly from brigade, denoting an operational military unit composed of multiple regiments or battalions.

A Major General is a two-star general who typically commands a force of 10,000 to 15,000 personnel. This rank has a historical quirk: despite a Major ranking above a Lieutenant, a Major General ranks below a Lieutenant General. This is because the rank was originally called sergeant major general before the 1700s. Because a "sergeant major general" was subordinate to a "lieutenant general", the order remained intact even after "sergeant" was removed from the title.

A General is a four-star officer holding the highest operational rank in peacetime. Four-star generals command unified combatant commands, geographic theaters, or serve as service branch chiefs of staff. Rooted in the Latin generalis (meaning "pertaining to all" or "universal"), the title signifies overarching authority across all branches and arms of command.

The truth about your brain

You won’t believe what happens in your brain while you sleep

Image: Milad Fakurian

Your brain is one of the most powerful and mysterious organs in your body. It controls everything from your thoughts to your emotions and even processes information at lightning speed. But how much do you really know about it? Some long-believed myths about the brain have been debunked, while other surprising facts reveal just how incredible this organ truly is. Get ready to be amazed by these fascinating brain facts!

Image: Natasha Connell

You’ve probably heard this one before, but it’s completely false! While it’s true that not all parts of the brain fire at the same time, imaging studies show that most regions are active throughout the day, even when we sleep.

Your brain is constantly working, controlling bodily functions and emotions, and processing information. So next time someone says you’re only using 10% of your brain, you can confidently tell them that’s just a myth!

Image: Aarón Blanco Tejedor

Here’s a weird fact: While your brain processes pain signals from the rest of your body, it has no pain receptors of its own. This is why surgeons can perform brain surgery on conscious patients without causing them pain.

However, the membranes and tissues surrounding the brain do have pain receptors, which is why headaches and brain injuries can be so excruciating.

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How come we have headaches if the brain has no pain receptors? Well, that’s because headaches are triggered by chemical activity in the brain, changes in nerves and blood vessels, and even fluctuating serotonin levels.

In some cases, hormones like estrogen can also play a role, which explains why migraines are more common in women.

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Dreams are proof that your brain never rests! (Warning: this fact can make you feel exhausted.) While you sleep, your limbic system, that is, the part of the brain that deals with emotions, becomes especially active, which is why dreams often feel so intense.

On average, humans experience four to seven dreams per night, even if we don’t always remember them. And what about that scary nightmare about falling? Well, you can thank your amygdala, the brain’s fear center, for that one.

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Have you ever walked into a room and instantly forgotten what you were after? That’s because short-term memory only lasts about 20-30 seconds! That’s not enough!

Your brain holds a limited amount of information in its active state before deciding whether to store it or discard it. Ironically, we can’t really choose what makes the cut, but we do hope these facts stay with you!

Image: BUDDHI Kumar SHRESTHA

That sharp, icy pain when you eat something too cold? It’s your brain’s way of telling you to slow down! Officially called sphenopalatine ganglioneuralgia, a brain freeze happens when cold food or drinks rapidly chill the blood vessels in your throat, causing them to constrict and then rapidly expand. This sends pain signals to your brain, warning you of the sudden temperature shift. It’s annoying, but it’s actually your body trying to protect itself!

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You didn’t need us to tell you, but let’s look at the details: The average person has between 12,000 and 60,000 thoughts per day. What’s even more interesting? 95% of those thoughts are the same ones you had yesterday. Is that not surprising enough? Hear this out: 80% of them tend to be negative. That’s because our brains are wired for survival, constantly analyzing risks and potential dangers.

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Even though it only makes up about 2% of your body weight, your brain employs a major quantity of energy! It consumes 20% of your oxygen and blood supply, making it one of the most demanding organs in your body.

If your brain goes without oxygen for just five minutes, brain cells start dying, leading to irreversible damage. This is why deep breathing and cardiovascular exercise are great for brain health!

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Do you know that feeling when you hit the back of your head and see stars? That’s because your occipital lobe, which controls vision, is located at the back of your brain. If you get hit there, your brain momentarily misfires, causing flashes of light.

Interestingly, your brain processes vision on the opposite side; while your right brain controls your left eye, your left brain controls your right eye. It’s one of the many ways the brain operates in a complex way.

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Believe it or not, your brain generates between 12 and 25 watts of electricity when you’re awake. If you can’t really grasp how powerful that is, check this out: It’s enough to power a small light bulb! Your brain’s electrical activity is what allows neurons to send signals at speeds of up to 260 miles per hour.

Image: Robina Weermeijer

Your brain may be the fattiest organ in your body, consisting of at least 60% fat! This is why consuming healthy fats, like omega-3s and omega-6s present in fish, for example, is essential for brain health.

Healthy fats stabilize brain cell walls, reduce inflammation, and support cognitive function. So go ahead and enjoy that avocado toast, it’s food for your brain!

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It’s not just your memory that fades over time; the brain itself physically shrinks as one gets older. It continues developing until your late 40s, but after that, it slowly decreases in size.

Now, size doesn’t equal intelligence, so a smaller brain doesn’t necessarily mean a less capable one. Staying mentally active, exercising, and eating brain-boosting foods can help keep it in top shape!

Image: Lisa Yount

We often think of cholesterol as bad, but your brain actually depends on it! In fact, 25% of your body’s cholesterol is stored in your brain, where it helps with learning and memory. However, unlike other organs, the brain can’t absorb cholesterol from the blood, it has to produce its own. So, while too much cholesterol in the body can be harmful, the right amount is vital for brain function. At least you can use that as an excuse to get that burger!