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Wii Fitness is a daily routine that you do to improve your in-game fitness age. To improve your age, you must practice every day. But you can only take one test each day and you cannot retake the test once you start. (You can't just simply turn off and turn back on your Wii if you think you want something better.)

The test is divided into three sessions. The sessions are exactly the same as their Training mode counterparts with only slight differences. The sessions are chosen at random and they are different each day. Below are the changes in these sessions. Other than the listed, it is exactly like training mode so practice a lot in the Training mode Area!

[edit] Changes from Training Mode sessions

• In "Returning the Balls" session, the computer player will throw 50 balls at you. If you miss, you do not quit.
• In "Timing your Swing" session, the computer player will throw 30 balls at you. If you miss, you don't quit the session.
• In "Target Practice" for Tennis, you must hit 10 targets. If you miss, you don't start over but you must serve again.
• The game sometimes will alert you if you need the Nunchuk attachment. If you pick "Yes," then you know you will get at least one Boxing challenge for sure! If you don't feel like playing a Boxing challenge today, select "No."

[edit] Results

Once you complete all three sessions, the game will then give you your fitness age. (The game may sometimes give you a fake number before revealing the real number just to scare you!) The game will then graph you age for today on a graph and will send you a message to the Wii Message Board.

To put it simply, if you do great, you will get a lower score, which is good. The lowest score you can get is 20. But, if you do absolutely horrible, then the age will increase which is bad. The game will also measure your strengths and weaknesses on a little triangular chart.

The graph can span up to three months. As you play and do better, you can see your progress on this chart. Move the Wii Remote over the graph and press the A Button to see the progress over 1, 2, or 3 months.

A message will appear on your Wii Message Board every time you complete the Wii Fitness challenge for the day. The message will tell you your fitness age today, how much it increased or decreased, & will tell you how many tests you have taken and the date you did it on. You don't have to keep the message you receive as you can simply trash it once you read it but you might want it for keepsake!