If you ever decide to go for a sport that would be perfect for staying in the outdoors and keeping you psychically fit, tennis would be a good option. It is a fast paced game and it is definitely a physically demanding one, it is fun, too. So, it might do you good to take a look at what the game has to offer and see if this is something that you might want to learn and then play in the long term. You might find it interesting enough to actually pursue even professionally.
Make no mistake, this is a hard game to learn. There are rules. There are regulations, there are a lot of things that you need to pay close attention to if you want to play it right, but the rewards you are getting will be truly worth it. You get to improve your speed and agility. Expect to improve your body shape as well. All the running that you will be doing from one end of the court to the other is going to do a lot of good to your waist. Of course, you want to make sure you are doing things right.
If you have some medical issues before, it would be best to consult with your doctor first to see if it would be a good idea for you to pursue the sport. He can give you the green light if he will find that you are fit enough to meet the rigors of the activity. Otherwise, he will have to advise you to pursue a sport that is less demanding and would be more suitable for the current state of your health and your physique.
If you have no idea how the game is played, then start right from scratch. You should never hesitate to secure the assistance of a coach or a trainer to help guide you through the whole tennis court surfaces. They will help ensure that you secure the necessary basic skills to allow you to perform the necessary hand movements and racket action when you are on the court. Look for an experienced coach though and make sure he has been around for a long time so you are sure that he knows exactly what he is doing.
Avoid learning strikes that are way too flashy. You want to hone up on your basic skills first before you will start considering learning some fancy strokes here and there. Even the pros would want to focus on a specific strike to allow them to catch balls thrown at them better. You will find that you get to better perform this way since the moves you are executing are not as complicated.
Practice all the time too. Join a club made up of people who happen to share the same enthusiasm and passion for the game. They can relate to you and your love for the sport. Also, they can help you in many things, especially those parts where you are struggling. Play matches with them, the more matches you get to be exposed to, more improved your mental play is going to be. So, get as much practice as possible.