Yes, there are health risks associated with not exercising your cat enough. Cats are naturally active and need regular exercise to maintain their physical and mental well-being. Here are some of the potential health risks associated with a lack of exercise in cats:

1. Obesity: Cats that don’t get enough exercise are at risk of becoming overweight or obese. Obesity in cats can lead to a range of health problems, including diabetes, heart disease, and joint problems.
2. Behavioral issues: Cats that don’t get enough exercise can become bored, anxious, or stressed. This can lead to destructive behavior, such as scratching furniture or walls, and can also cause issues with aggression.
3. Urinary tract issues: Lack of exercise can contribute to urinary tract issues in cats, such as urinary tract infections and bladder stones. Exercise helps keep the urinary tract healthy by promoting regular urination and preventing urine from stagnating in the bladder.
4. Constipation: Exercise helps keep the digestive system moving, and cats that don’t get enough exercise are at risk of developing constipation. This can lead to discomfort, pain, and even more serious health issues such as blockages in the digestive system.
5. Muscle and joint issues: Lack of exercise can lead to muscle and joint problems in cats, particularly as they age. Regular exercise helps maintain muscle mass and flexibility, which can help prevent joint issues such as arthritis.
6. Reduced lifespan: Cats that don’t get enough exercise are at risk of developing a range of health issues that can reduce their lifespan. Exercise helps maintain a healthy weight, promotes good heart health, and can improve overall quality of life.

It’s important to note that exercise needs can vary depending on a cat’s age, breed, and overall health. However, in general, cats should get at least 20-30 minutes of exercise per day. This can include interactive play with toys, climbing on cat trees, or even just running around the house. Providing your cat with enough exercise is an important part of being a responsible pet owner, and can help ensure that your feline friend stays happy and healthy for years to come.