With sunshine finally arriving in many parts of the UK, Dogs Trust, the nation’s largest dog welfare charity, is warning dog owners that too much exercise in warm weather – even as mild as those forecast for this weekend - can cause severe health problems for our canine companions. While most dog lovers will be aware that extreme weather and heatwaves can be dangerous for dogs - sometimes even deadly - many will be unaware that exercising dogs in early summer temperatures can cause heatstroke in dogs. In some cases, heatstroke can prove fatal.  A recent study showed that nearly 75% of cases of heat-related...