People get old because their bodies change over time, just like how toys wear out after lots of playing! 🧸 Our bodies have tiny parts called cells that help us grow and stay healthy. But as we get older, these cells don't work as well as they used to.
Think of it like a car 🚗—after many years of driving, it needs more repairs. That's why older people sometimes have wrinkles or need glasses. But getting old is also wonderful because it means you've had lots of adventures and learned many things! 🌟
People age because their bodies' cells slowly stop working as well as they used to. 🧬 Our cells are like tiny workers that repair and replace damaged parts. But over time, they make mistakes or get tired, just like how a pencil gets shorter the more you use it ✏️.
Scientists call this cellular aging. Things like sunlight ☀️, food 🍎, and even exercise can affect how fast we age. But aging isn’t bad—it’s part of life! Older people have amazing stories and wisdom to share.
Aging happens due to a mix of biological processes. One key reason is DNA damage—over time, tiny errors build up in our genetic code, making cells work less efficiently. 🧬 Another factor is telomeres, protective caps on chromosomes that shorten each time a cell divides. When they’re gone, cells can’t renew anymore.
External factors like UV rays ☀️, pollution 🏭, and unhealthy habits (like smoking) speed up aging. But scientists are studying ways to slow it down, like with antioxidants in fruits 🍓 or advanced medicine. Aging is natural, but staying active and eating well can keep you healthier longer!