I learnt how to whistle when I was about 8. We had a three note whistle to call the dog and I could do it quite well.
I dont know when I lost the knack. I could usually manage a faint breathy sort of whistle but the proper piecing one was beyond me.
Now I have realised why. I have lost far more fat in my cheeks than I usually do on a diet. This high fat way of eating has blocked my insulin response and the fat loss is not occurring in its usual pattern. Usually my face stays round and fat while other parts of me get thinner.
The reduction in my cheek fat has increased my whistling ability. I was out with the dogs yesterday and one went missing. Tried my whistle and it was back to a full strength 3 note loud whistle. Something I have not been able to do for 40 years!
The dog found me!