Q.What do you understand by the female athlete triad? Explain the symptoms and causes of any one of them.

The Female Athlete Triad is best understood by starting with a simple observation: the human body is a finely tuned system that needs energy to run everything — from your heartbeat to your monthly menstrual cycle. When a female athlete pushes her body hard through intense training but does not take in enough calories to match that energy output, the body makes a survival decision. It begins to shut down functions that are not immediately essential for keeping her alive. The first system to get the signal is often the reproductive system.

The precise meaning of the Triad is a syndrome of three interconnected conditions that appear together in physically active girls and women. They are: low energy availability (with or without an eating disorder), menstrual dysfunction (most commonly the absence of periods, called amenorrhea), and low bone mineral density (which can progress to osteoporosis). The key insight is that these three are not separate problems — they are linked in a chain. Low energy availability is the root cause. When the body does not get enough fuel, it reduces the production of hormones that control the menstrual cycle. Without those hormones, periods stop. And because those same hormones (especially estrogen) are critical for building and maintaining strong bones, the lack of them leads to weakened bones that are prone to stress fractures.

Why does this matter for someone who is not an athlete or a science student? Because the Triad illustrates a fundamental principle about how the body prioritises survival over performance or appearance. A young woman who exercises heavily and restricts food — whether to lose weight, improve performance, or meet a certain body ideal — may not realise that she is trading her long-term bone health for short-term goals. The bone loss that occurs during the teenage years and early twenties is especially dangerous because that is the period when peak bone mass is built. Once lost, it is very difficult to regain. …

Newton’s Laws of Motion

You already know motion from the inside. When a bus lurches forward, you are thrown backward. When it stops suddenly, you lurch forward. That feeling in your body — the pull, the push, the resistance — is exactly what Newton’s three laws describe. They are not abstract rules written in a book. They are the logic of how every moving thing behaves, from a cricket ball to a planet.

First Law: The Law of Inertia

A book lying on a table stays there forever unless someone picks it up. A ball rolling on a flat ground keeps rolling unless friction or a foot stops it. This is the first law: an object at rest stays at rest, and an object in motion stays in motion at the same speed and in the same straight line, unless an outside force acts on it.

The key idea is inertia — the natural unwillingness of any object to change its state of motion. Heavier objects have more inertia. A truck is harder to push than a bicycle, and once moving, harder to stop. Inertia is not laziness; it is a fundamental property of mass.

Second Law: Force Changes Motion

The first law says a force is needed to change motion. The second law says how much change happens. A gentle push moves a toy car slowly; a hard push sends it flying. The same push on a heavy box barely moves it. Force, mass, and the change in motion are linked.

The core idea is that the net force on an object determines how quickly its motion changes. More force means a bigger change. More mass means the same force produces a smaller change. This is why a cricket bat swung hard sends the ball far, but the same swing against a heavy medicine ball barely moves it.

Third Law: Action and Reaction

Push against a wall. The wall pushes back — you feel it in your hand. Jump off a boat onto the shore: the boat moves backward. This is the third law: for every action, there is an equal and opposite reaction.

The two forces always act on different objects. When you push the wall, the wall pushes your hand. When your foot pushes the ground backward, the ground pushes your foot forward — that is how you walk. The forces are equal in size and opposite in direction, but they never cancel each other out because they act on different bodies. …