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Specifically designed for females 40+, this intelligent program will set you up to be strong and independent for decades to come.


Program Includes

  • 12 weeks of intelligent programming

  • New programming every three weeks

  • 2-4 strength training days (2-3 days beginner and 4 days for intermediate/advanced)

  • Two days of HIIT/SIT cardio

  • Core and mobility work

  • At home and gym workouts

  • Beginner and intermediate levels

  • Progressive overload instruction videos

  • User-friendly mobile app

  • Intermediate/advanced levels

  • Nutrition guideline from Dr. Sims

Two Levels to Choose From


The Power Happens Beginner 12 week program was designed to build strong bones and muscle while improving your cardiovascular health with HIIT and S.I.T sessions alongside mobility and core work. New programming is offered every three weeks and can be performed at the gym or at home with limited equipment (swiss ball, dumbbells/kettlebells, long and short resistance bands). We begin with higher reps to train the mind and muscle connection (tendons and ligaments) to prepare the body for lower reps and heavier loads towards the end of the program setting you up for success in future programs.

​- 5-6 days per week

3 Strength/2 HIIT or SIT/1 Optional Mobility or Core

- Average Workout: 60-70 Minutes with 30-40 Minute Alternative

- 12 weeks total


Power Happens is an intermediate/advanced 12 week program designed for the female 35 plus wanting to build max strength and power, increase muscle mass,improve cardiovascular fitness, and incease mobility over the duration of this program. It is recommended that you are comfortable in the weights room (although can be done at home with limited equipment) and comfortable lifting heavy loads. It is also recommended that you have been approved for heavy strength training by your physician and are injury free.

​- 5-6 days per week

3 Strength/2 HIIT or SIT/1 Optional Mobility or Core

- Average Workout: 60-70 Minutes with 30-40 Minute Alternative

- 12 weeks total


Equipment Needed


Swiss ball, dumbbells or kettlebells, small booty bands and long pull-up bands. Optional equipment: TRX, decline/incline bench


Standard gym equipment (leg press, leg extension, barbell, bench, back extension, leg curl, dumbbells, EZ Bar)


Frequently Asked Questions

How do I know if I want beginner the intermediate program?

If you are just beginning your lifting journey or are still working primarily with just dumbbells during the first year strength training, the beginner program is your appropriate for you.


More experienced: If you have a strong and solid foundation with strength training using barbells and machines, and working down in low rep ranges with advanced overload techniques, this program is suitable for you.


How is the program set up?

The workouts are uploaded to the Hailey Happens Fitness app immediately after purchase. The workouts are a do it yourself program where you will be given your sets, reps, and instructions on the program overload methods. You will log the weights you use each week. There are no follow along videos. You will have a video of each exercise, but they do not have instructions that accompany them.


*You do get instructional videos on form and technique in the Learn To Lift course, which is free in my app.

Is there any face time with Dr. Sims?

There will be a quarterly Q&A session with Stacy thru 2024 to answer any of your questions about the program. You will also have access to all previous Q&A sessions.


What do we do after we complete the 12 week program?

We are already beginning to write the next 12 weeks for those who are wanting to progress with this program.


How long is this program?

This program is 12 weeks in duration with new workouts updated every three weeks.


What equipment do I need for either program?

Both programs are available for you to complete at the gym with standard gym equipment or at home with limited equipment including: bands, dumbbells or kettlebells, swiss ball, a bench.


How long do I get access to the program?

You own this program after purchase for a lifetime or the duration of the Hailey Happens Fitness app. 



  • Two programs to choose from, Beginner and Intermediate/Advanced 

  • 12 weeks of workouts (new programming with new overload techniques introduced every third week)

  • 3-6 days of programming (depending on the week and the program)

  • 30 and 60 minute options for all strength days 

  • Designed for those women that want access to shorter max load training as well as an option for hypertrophy blocks to focus on max strength and building muscle and bringing up lagging muscle groups

  • Access to a private facebook group

  • Education video module as well as resource manual from Dr. Sims on general nutrition information for peri and post menopausal women

  • Live  Q and A sessions evey other month (July/August no lives) through 2024

  • Designed for the peri and post menopausal female 

  • Unique programming that is different from Power Happens Express

  • ‘Perfect for the teaching the beginner to properly prepare for lower loads and higher reps by preparing the tendons and ligaments with a descending rep scheme from the start of the 12 week program to the end setting you up for future lower rep range/heavier load programs

  • Features a HIIT and/or  S.I.T sessions per week

  • Price $199 USD

  • Dr. Sims exact workout recommendations from her book “NEXT LEVEL” 

  • Short and intense 30 minute sessions featuring low reps with heavy loads to get you out and on with your day!

  • 2 S.I.T workouts per week

  • 1 (optional) HIIT workout per week

  • 4 strength training days featuring only compound movements with one “optional” superset for those wanting a bit more

  • Designed to build max strength and power

  • Designed for the peri/post menopausal female

  • Perfect for the intermediate lifter that is comfortable working in low rep ranges with heavy loads

  • Can be completed at home or at the gym

  • 12 weeks worth of workouts (new programming with new overload methods introduced every third week)

  • 3-5 days of programming (depending on the optional add ons)

  • Minimal equipment needed: Swiss ball, dumbbells and/or kettlebells, short and long resistance bands. (not required but highly recommended: TRX, Bench)

  • Different programming and workouts from the original Power Happens program

  • Launch price of $99 USD

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