Over forty,
under no illusions.

After 40 you lose muscle every year you do not actively keep it. The number is small, around one percent, and it compounds exactly like money does. Lifting is how you refuse the trade.
What changes, really
Less than the industry wants you to think. Recovery takes longer, warmups stop being optional, and sleep debt now sends an invoice. The lifts are the same lifts. Plenty of people set lifetime strength records in their fifties because they finally trained consistently, which was always the whole trick.
The adjustments that earn their keep
- Ten minute warmups, no negotiation. Bikes, bands, empty bar.
- Two hard strength days and one easy aerobic day beats four sloppy sessions.
- Trap bar over straight bar deadlifts if your back history has opinions.
- Protein needs go UP with age, not down: research on older lifters points toward the higher end of the range. Run the calculator and aim high.
- A 48 hour gap between hard sessions on the same muscles.
The shelf for this file
Creatine is arguably more interesting after 40 than before it, with research on muscle retention and some early cognition work. Payload daily. Workhorse to hit the higher protein target. Power Down Magnesium in the evening if sleep got lighter with age, which for most of us it rudely did.
The program does not card you
Strength track, with the warmups you were going to skip built in.