Smell Training for Brain Health?

An article in the New York Times discussed the apparent connection between smelling and brain functions. Odor discernment is a function that tends to decrease and even disappear with age, but intentional training can regain smell recognition, and some studies indicate that smell training can improve mood and word recall. Other studies show that smell training can encourage new cell growth in important areas of the brain.
Training is simple and inexpensive, consisting of daily moments intentionally sniffing enjoyable odors.
The Times article link: https://www.nytimes.com/2024/06/18/well/mind/nose-mental-health-brain-smell.html
Searching "smell training therapy" will provide many links. Here is a simple one: https://www.enthealth.org/be_ent_smart/smell-retraining-therapy/
I've decided to incorporate smell training into my morning balance/leg strength routine. I'll be curious to hear from others about this.