What are some exercises that can be done at home without equipment?

There are numerous exercises you can do at home without the need for any equipment. Here are some examples:

Bodyweight squats: Stand with your feet shoulder-width apart, lower your hips into a squatting position, keeping your chest up and knees aligned with your toes. Return to the starting position and repeat.

Push-ups: Start in a plank position with your hands shoulder-width apart, lower your chest towards the floor by bending your elbows, and then push back up.

Lunges: Stand with your feet hip-width apart, step forward with one leg and lower your body until both knees are bent at a 90-degree angle. Push back up and repeat with the other leg.

Plank: Get into a push-up position, resting your forearms on the ground, and hold your body in a straight line from head to heels, engaging your core muscles. Hold for a specified time or as long as you can maintain proper form.

Mountain climbers: Start in a push-up position, bring one knee towards your chest, then quickly switch legs, alternating the movement in a running-like motion.

Burpees: Begin in a standing position, drop into a squat position, kick your legs back into a push-up position, perform a push-up, jump your feet back towards your hands, and explosively jump up into the air with your arms overhead.

High knees: Stand in place and run in position while lifting your knees as high as possible, alternating legs.

Bicycle crunches: Lie on your back, bring your knees up, and mimic a pedaling motion with your legs while touching your elbow to the opposite knee.

Plank twists: Start in a plank position, rotate your hips and touch one hip to the ground, return to the starting position, and repeat on the other side.

Jumping jacks: Stand with your feet together, then jump your feet out while raising your arms overhead. Jump back to the starting position and repeat.

These exercises target different muscle groups and can be combined to create a full-body workout routine. Remember to warm up before exercising and cool down/stretch afterward. Additionally, modify the exercises based on your fitness level and gradually increase the intensity or repetitions as you progress.