You should try to convince your child to never smoke because the perils are well known. Although there is much more that you can do. To do yourself and your kids a massive favor then quit smoking, if you happen to smoke. The dangers of second hand smoke are almost as serious as those for smokers. So you'll want to naturally keep your child away from smoke. Aside from this, it's important to set the right example. Your words do not have as much of an impression as your actions, so if your kids see you smoking they are more likely to follow this. By applying a no smoking policy to guests and family members in your house, this will keep it free of second hand smoke.
You can assist your children in being more physically active by simply planning to do some family activities that are both healthy and in the outdoors. Rather than sitting there watching the TV as family time, why not go out for a nice walk after your dinner? You should include activities such as swimming, hiking and cycling when you go on vacation. This won't just be healthy for the kids but also for the adults in your family. In this specific area you should attempt to be a good role model, as younger children usually try to copy the things they see. If your kids can get used to moving around when they're still at a young age then it's less likely that they'll become overweight and sedentary when they are teenagers and adults.
Children aren't always aware of weather conditions that are dangerous, especially if they're having fun. So it's up to you to make sure they aren't running around in temperatures that are extremely hot or cold. Winter time is great for kids as they might like to play around in the snow, but you need to make sure that they're adequately dressed, with hats, gloves and numerous layers. If the temperature is under 10 degrees F, you should limit the time your kids spend outdoors.
Hot temperatures of over 90 F should also have this apply. Also, in these circumstances you need to ensure that your children are getting plenty of water, as fainting can occur when kids play too hard in the heat.
There are certainly many factors to think about regarding the health of your kid.
It all boils down to diet, proper hygiene, exercise and listening to medical guidance. Part of your job as a parent is to look for any signs that something is wrong, as children may not tell you on their own. It'll be easier to have healthy kids if you keep the lines of communication open.