OH NO, that is so NOT correct!!!! : It makes me both sad and angry to read this and that people believe, it is true, which it is NOT
"Give him a trim.
We know you would not want to say goodbye to your dog’s long, straight and silky hair but you have to let go of it if you want to make sure that your dog will survive the summer heat. That is why you should pay the groomers a visit before the summer comes so you can give your dog the lightweight summer cut that he needs. Do not worry! There are plenty of cuts for you to choose from.
Summer can be fun but the rise in temperature can be a big threat to the health of your dogs. It is up to you to make sure that they are well protected from it."
The Shih Tzu´s long silky hair proctects the dog against the heat (and cold), against the sun´s harmful uva- and uvb sunbeams, against flies, ticks and insects bites. If you can see the dogs skin, so can the sun, insects... ect. ... Keep your Shih Tzu i full (show) coat, keep him or her mats- and knots free and brush and comb him or her throughly throughrout each and every day removing thr death naturally shed undercoat, so that his or her skin can breath. The death naturally shed undercoat can ONLY be removed by daily brushing and combing, not by clipping your Shih Tzu´s hair short, as so many mistankenly think or believe.
How to keep your Shih Tzu or other longhaired dog breed cool and healthy in the summertime:
Daily brushing and combing revoming then death naturally shed undercoat
Keep your Shih Tzu mats- and knots free
Keep your Shih Tzu in full coat - let your Shih Tzu keep his or her long silky hair, as they are breed to have for that very reason, as protection
Don´t clip or cut your Shih Tzu´s hair short.
Always let yoru Shih Tzu have free access to fresh water
Go for walks in the mornings, when it is still cool from the night or late in the evening, when the temperature has dropped to a pleasent level
NEVER leave your Shih Tzu in your others car. That can quickly be deathly for your dog
Keep you house cool, so your Shih Tzu can stay cool inside out of the sun
Always check the surface - the ground, where you walk your Shih Tzu with the back of your hand to make sure, that your Shih Tzu do not burn his or her paws