Which statement about the recommendation for daily physical activity is true?

it should be vigorous
it should be a mix of moderate, low, and vigorous
it should be moderate to vigorous
it should be continual and not broken into pieces

nope, but i have cleaned my brush in my cup of not as potentially harmful but nevertheless, very upsetting for scottish/british folks. especially if you've used the last teabag for it

explanation:

there could be something in that . . i am indeed an old scottish man!

there's a bit of bolshie-ness with it too though. i won't let go of the old ways . . tea and whisky . . whether the young whippersnappers like it or not!