Human: How long can I keep my cat inside before it gets sick? Assistant: 
It is important to make sure your cat has access to the outdoors for at least part of each day, and preferably several times a day. Cats are natural hunters and need to exercise their instincts by exploring their environment. Keeping them indoors all the time can cause health problems such as obesity, boredom, depression, and anxiety. Make sure to provide plenty of toys, scratching posts, and other items that will help your cat stay entertained and stimulated while indoors.