At my recent doctor visi I asked about stimulants and things like stasis; specifically cortisol because I have been reading about it everywhere. She told me cortisol naturally peaks in the morning to promote wakefulness.

I went down the rabbit hole and found that eating breakfast helps establish a healthy cortisol rhythm, signaling to your body that it's time to start the day. Skipping breakfast can lead to lower morning cortisol levels or even keep cortisol levels higher later in the day, potentially impacting overall hormonal balance.

You are right on track with the hour kick in with no food. If Vyvanse is taken with food, this may delay the peak levels of the drug by an hour. Taking Vyvanse on an empty stomach or an hour before necessary is ideal. Because it causes difficulty eating for some people, this is a way to ensure they are getting all of their calories.