Thinner thighs: cycling at full speed for 8 kilometers every day (the ratio of uphill to downhill is about 5: 1), and downhill is not always slippery. You have to drag yourself up for a month or two (it is recommended to go to a section with few people and cars).
Whether you are practicing abdominal muscles or thin thighs, you must strictly control your food intake. You can only eat 50% to 60% full per meal (the amount of meals has a great influence on abdominal muscles), but be careful of hypoglycemia.
I tried it myself, and it was absolutely effective. Of course, I must stick to it, or ........... will forget it.