Let's imagine that our cells are like houses, and they need energy to stay alive and do their jobs. The energy comes from tiny factories inside the cells called mitochondria. But sometimes the mitochondria can get sick or weak, and the cells feel tired and don't work as well.
So, scientists found a way to help these cells by doing something called cytoplasmic transfer. That's when they take the healthy mitochondria from one cell and put them into another cell that needs help. It's like taking a strong battery from one toy and putting it into another toy that needs more energy.
To do this, the scientists take a tiny needle and carefully suck out a little bit of the cytoplasm or gooey stuff from the healthy cell. This cytoplasm contains the mitochondria and other important parts of the cell. Then they put the cytoplasm into the other cell that needs help, like a clogged drain cleaner.
Once the cytoplasm is in the new cell, the mitochondria get to work, making lots of energy and making the cell feel better. This can help the cell do its job better, or help it divide and grow into a healthy new organism, like a seed growing into a plant.
Overall, cytoplasmic transfer is like giving a car a jump start or a booster shot for cells that need a little extra help.