The theory of biorhythms is a theory that claims our daily lives are significantly affected by rhythmic cycles. A biorhythm is an attempt to predict various aspects of a person's life through simple mathematical cycles. The theory was developed by Wilhelm Fliess in the late 19th century. This application include daily advices in English/Spanish.

Instructions:
1. To configure date and time of birth press the button 'Configuration'.
1.1. Press 'Select Date' button to select a date of birth: Pick a year from the display to select a year of birth. Continues with month and day. Press OK.
1.2. Select an Hour. It's a birth hour.
1.3. Select an Minute. It's a minute of birth.
1.4. Select days to show in a main panel: 7, 14, 21 or 28 days to show.
1.5. Select a date format to show a date in a main panel using this format.
1.6. Select 'Save Changes' button to save this configuration. It's used to show graphics correctly.
2. Click on a gray bar that represents a day selected. Its calculus are show at the bottom panel.
3. Buttons at the bottom are:
3.1. -Y / +Y: To subtract / add a year.
3.2. -M / +M: To subtract / add a month.
3.3. -W / +W: To subtract / add a week.
3.4. -D / +D: To subtract / add a day.
3.5. DT: To configure an initial date to show.
3.6. TD: To configure today as an initial date to show.
4. Press 'About' button to know about this app and get the developer's contact.
5. Press 'Advice' button to get an advice for a selected day. Language is configurable using 'Configuration' button on 'Language advice' section.