It's simple really, the organisation has lost any vestigial connection to either common sense or the real world. It's not enough that it tells lies, promotes an aggressive health fascist agenda and seeks to influence policy through the manipulation of lobby groups. Now it gives advice that is a combination of the obvious and the stupid.
try to keep out of the sun between 11am to 3pm
apply sunscreen of at least SPF15 with UVA protection
wear UV sunglasses, preferably wraparound, to reduce UV exposure to the eyes
wear light, loose-fitting cotton clothes, a hat and light scarf
drink lots of cool drinks
And what was the maximum temperature expected? According to the radio - 29 degrees Celsius. Heaven knows how people cope in places like Spain or Italy - the whole place must shut down! This isn't a heatwave, it's a little on the hot side for an English summer's day.
This sort of po-faced, spoil-sport fussbucketry really doesn't help at all. For most of us going about our regular day would put us at no risk at all. Indeed, the sunshine in the middle of the day was a welcome warming, a chance to sit out with our sandwich rather than hunch gloomily over our desk.
If Public Health England has nothing better to do than create and review 'Heatwave Plans' then it's pretty obvious it serves no useful purpose - indeed that it is a positive detriment to our health and happiness. Public Health England should be scrapped - immediately.