KSQD 7-28-2021: A review of a variety of all important vaccines and the promise of RNA vaccine technology; Dr. Dawn favors topical hormone replacement therapy over oral versions; The problem of the Delta Coronavirus variant: weak symptoms but rapid spread; Brain to speech translation! Personal story for those who would benefit; Decoding words from brain signals -- Personal story for those who would benefit; Wearable brain-machine interfaces; New AI algorithms help the predicting protein folding problem