Precision Sport and Spine will host a free seminar, "Fats that Heal - Fats that Kill," on Thursday, June 5 at 6:30 p.m.    Attendees will learn which healthy fats can help them lose weight and how eating the wrong fats can lead to a variety of health problems, including arthritis, colitis, heart disease, stroke, astma and joint pain.  Attendees will also receive a free exam, a $140 value.  Registration is required.  For more information call 492-0111.