Baby Teeth

"Baby teeth have a value that goes beyond money from the tooth fairy."https://www.npr.org/2026/04/29/nx-s1-5803561/baby-teeth-toxic-metals-brain-infants-kids?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4

NATIONAL SARCOIDOSIS DAY

"National Sarcoidosis Day on April 30th annually raises awareness about a non-contagious immune system disease."https://nationaldaycalendar.com/celebrations/national-sarcoidosis-day-april-30

NATIONAL HAIRSTYLIST APPRECIATION DAY

"Each year on April 30th, National Hairstylist Appreciation Day honors hairstylists everywhere who make artful hairstyles possible."https://nationaldaycalendar.com/celebrations/national-hairstylists-appreciation-day-april-30

Before AIDS

"Before the arrival of powerful anti-HIV drugs, AIDS took such a heavy toll in one region of South Africa that, in just over a decade, it left a mark on the human genome, changing the frequency of immune-system genes, a new study shows."

https://www.science.org/content/article/how-hiv-aids-tragedy-spurred-human-evolution?utm_medium=email&utm_source=1440&utm_campaign=1440&user_id=66c4c92f5d78644b3ac5d5b4

Q Tip warning

"Every Q-tips box has a warning label: "Do not insert swab into ear canal," and if you're going to use it to clean your ears, gently swab the outer part only."

https://www.cbsnews.com/sacramento/news/how-we-got-addicted-to-using-q-tips-the-wrong-way/?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4

Bioimaging advancements

"MIT researchers discovered a paradoxical phenomenon in optical physics that could enable a new bioimaging method that’s faster and higher-resolution than existing technology."https://news.mit.edu/2026/self-organizing-pencil-beam-laser-could-help-scientists-design-brain-targeted-therapies-0427?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4

NATIONAL BRAVEHEARTS DAY

"Each year on April 28, we celebrate National BraveHearts Day to honor the bravery of families dealing with childhood 

cancer."

https://nationaldaycalendar.com/celebrations/national-bravehearts-day-april-28th