Usually between the first and second hour of falling asleep. A person could have up to five periods of r.e.m. throughout one night's sleep. Usually between the first and second hour of falling asleep. A person could have up to five periods of r.e.m. throughout one night's sleep.
A variety of schools offer bachelor, master, and Ph.D. tracks in the pharmaceutical sciences. These degrees are useful to prepare for or extend a pharmacy education, but students must attend a 4-year professional program leading to the Doctor of Pharmacy, or Pharm.D., to practice as entry-level pharmacists.
Ph.D. programs typically include two years of advanced coursework in topics such as toxicology, genetics, and proteomics (the study of proteins). Graduate students also spend a lot of time conducting laboratory research. It typically takes four to six years to earn a doctoral degree in biochemistry or biophysics.