Best Answer: Walking a mile a day would improve your general cardiovascular health. It would give you more stamina and endurance. It would help your resistance to disease. It would build muscle mass in your legs.
A summary of these methods: 1  Cepheid variable stars and their cousins the RR Lyrae stars are the primary distance indicators in the galaxy and the local group. 2  They pulsate radially (basically at the sound speed in the envelope of the star) with a period inversely proportional to the square root of the density.
In 2005, I led a group of researchers from the Sloan Digital Sky Survey (SDSS) in the detection of the acoustic peak in the luminous red galaxy (LRG) sample. This produced a 4% measurement of the distance to redshift 0.35.