Emily
I was sure that Biorhythms had been mentioned before on AT but I've searched and not come up with anything.
I started to use these when I was a teenager, I used to be able to work them out and then draw the chart by hand with coloured pencils. I've long since forgotten how to do this but I have found a good website that calculates the Bio chart for you. I have quite a few of these sites saved but this is one of the best.
http://www.biomatch.com/biorhythms/free-biorhythms.asp
I've always found Biorhythms to be pretty accurate, I print one out and keep it handy for the month.
The above link is now obsolete 20 May 14
I started to use these when I was a teenager, I used to be able to work them out and then draw the chart by hand with coloured pencils. I've long since forgotten how to do this but I have found a good website that calculates the Bio chart for you. I have quite a few of these sites saved but this is one of the best.
http://www.biomatch.com/biorhythms/free-biorhythms.asp
I've always found Biorhythms to be pretty accurate, I print one out and keep it handy for the month.
The above link is now obsolete 20 May 14