Mary Panda, physical therapist and certified hand therapist, will explore proven ways to reduce the strain of gardening through proper tool use and body mechanics in this Tower Hill Botanic Garden course, to be held Saturday, April 16 beginning at 10 am at Tower Hill, 11 French Drive in Boylston.  Tower Hill members $15, non members $25.  Register online at www.towerhillbg.org or call 508-869-6111, ext 124.