Because Susan's dog likes to spend time outside, and their climate in the northeast US can be quite chilly in the winter, her dog has developed a thick winter coat, and now it all has to come out in preparation for the long, hot humid summer! More bad news, this will happen again in the fall, when her dog will “blow” her summer hair coat, to make way for her thick winter coat to come in.
Shedding occurs as new hair pushes the older dead hair out. Joy: something to look forward to twice a year! If you have a shedding dog and live in a climate where seasonal changes cause your dog to develop different hair coats at different times of the year to keep him warm or cool, your dog will shed out his coat as his new coat comes in. This will mean more hair than usual, all over your house-- and you! Fortunately, there are some steps you can take to help reduce the pain of finding black Labrador hair all over your white linen suit!
Remember, this too shall pass! Shedding season does not go on forever. Daily brushing will keep shedding under control, and prevent tangles and mats from forming as dead hair is released. Bathing to stimulate hair follicles and release seasonal hair helps the process along. Blow drying hair and vacuuming uses air to help blow or suck hair away, but there is no substitute for good old-fashioned elbow grease. Work in sections with slicker brushes and shedding tools, to really pull loose hair up from undercoats, and clean your tools regularly while working to keep them clean and make room for more hair, you're going to need it!