No, Howetzer, you don't need to excercise any more than you usually do - you can though, if you want to. Just make a log of all the physical activity during each day.

Here's an example of a filled log sheet:
Name: Hate
Week beginning date: 15th May

Sunday:

Activity:
The amount of excercise: 60'
The sport: jogging
The heaviness: easy
Other comments: Biked to school which took 30 minutes in all. (easy)

Dreaming:
The amount of sleep: 8 h
The number of dreams: 2
The number of lucid dreams: 0
Other comments: The other dream was very long and vivid, the other was pretty normal.

Other:
Mood: Very good, happy
Exhaustion: Tired

Monday:

Activity:
The amount of excercise: 100'
The sport: Gym excercise (max power)
The heaviness: Heavy
Other comments: Not much other activity

Dreaming:
The amount of sleep: 9 hours
The number of dreams: 3
The number of lucid dreams: 1
Other comments: 2 pretty normal dreams, 1 longer which became a short LD

Other:
Mood: Neutral
Exhaustion: Exhausted

Tuesday:

Activity:
The amount of excercise: 0' (rest day)
The sport:
The heaviness:
Other comments: Lawn mowing with a lawn-mower you need to push, took about 50'

Dreaming:
The amount of sleep: 7,5 hours
The number of dreams: 1
The number of lucid dreams: 0
Other comments: 1 short and foggy dream

Other:
Mood: Sad
Exhaustion: Rested

Wednesday:

Activity:
The amount of excercise: 90'
The sport: Paddling
The heaviness: Very easy
Other comments: -

Dreaming:
The amount of sleep: 8 hours
The number of dreams: 2
The number of lucid dreams: 0
Other comments: Both were pretty normal, but the second was quite long

Other:
Mood: Excellent, very happy
Exhaustion: Rested

etc.[/b]