MSI Press Blog

  Today's book back story is about Brittany Renz's book, Girl, You Got This ! From the publisher --  Brittany (author) was my (publisher) trainer. I was working on a book, Grandma's Ninja Training Diary (still am and someday it will see the world on a printed page). As we worked month by month, Brittany and her husband decided to expand their family of one son to two children (ultimately, Brittany delivered a daughter). As she became more and more pregnant, Brittany continued working with her fitness clients -- and maintained her own fitness routine. One thing we both noticed: no other pregnant women were working out in the gym. Brittany figured it might be because they did not think that they could or did not know how to. Hence, the origin of the book, Girl, You Got This!, which has caught the eye of doctors and women's magazines with its unusual content. Yes, you can be pregnant and also be in the best shape of your life. (And the whole family can work out together; ...

  People envy me. I don’t sweat. Not a drop. I can run, jump, shadow box, and bosun-ball my way through a workout, and my skin stays dry. But my trainer Brittany? She didn’t celebrate. She said: “No, no—not good. You’re not exchanging fluids.” She was right. 🔥 What Happens When You Don’t Sweat? Sweating isn’t just about cooling off. It’s how the body: Regulates temperature Releases heat Balances electrolytes Signals exertion limits Without sweat, heat builds up. I turn bright red after 10–20 minutes of intense exertion. Brittany sees it and sends me to hydrate and rest. Because even if I look composed, my body is waving a red flag. 🧬 The Science Behind It This condition is called anhidrosis (or hypohidrosis if partial). It’s rare, but not unheard of. Causes range from genetics to nerve or skin conditions. The danger isn’t vanity—it’s overheating , especially during cardio or high-intensity work. 🧘‍♀️ Ninja Strategy: Cooling Without Sweat Hydrate early and of...

  San Juan Books is the hybrid division of MSI Press LLC. It allows first-time writers to become published in a traditional way through the reduction of risk by sharing publication costs. All other publishing features are traditional in nature, and most SJB authors go on to be offered traditional contracts for their subsequent books. SJB publications are available as paperback, hard cover, and e-book versions. SJB authors' books very much hold their own against their contemporaries in the traditional publishing division. Indeed, a number of them have outsold their traditional compatriots. Today, San Juan Books presents author Brittany Renz. Brittany Renz is a successful personal trainer and mother in Hollister, California. A popular trainer with a very large, stable clientele, she trains together with her family, as well as coaching others. After years of people asking her how she does it all, she finally decided to take her experience and share it with the world. To see more posts...

           Recently released: audiobook edition of  Girl, You Got This!   Anxiety Anonymous   by Brittany Renz. Book description: Girl, You Got This: A Complete Guide to Thriving Through Pregnancy and Motherhood Becoming a mom is one of life’s biggest transitions—and it’s okay to want a little guidance along the way. In  Girl, You Got This , certified personal trainer, entrepreneur, and mom of (almost) two Brittany Renz shares expert advice, real-life experience, and empowering encouragement to help you navigate every stage of your motherhood journey—from preparing your body for pregnancy to delivery day and beyond. This comprehensive guide covers it all: • How to prepare for conception with intention and confidence • Fitness tips tailored to each trimester • What to expect physically and emotionally during pregnancy • Strategies for staying healthy, strong, and grounded through all the changes • Encouragement from someone who's liv...

  Entry: Downsizing Without Downgrading When I started out seven years ago with the wild and slightly rebellious goal of training for American Ninja Warrior , I went all in. I joined the most advanced local gym. I signed up for yoga classes. I even took on rock climbing training at a gym down in Santa Cruz. And twice a week, I worked with Brittany — yes, that Brittany, the one co-writing this book with me. For three years, we trained with focus and fire. I got stronger. I got leaner. I lost some work to make time. But I gained hope. Then — WHAM! — COVID hit. The gym closed. Brittany, like so many, had to find a new source of income. She built a successful salon business, and when the gym reopened, she had moved on. And yoga? Gone. No more yoga classes at the gym. Rock climbing in Santa Cruz? No longer feasible in a pandemic world, especially with vulnerable family members to protect. I stayed with the gym for a while — big gym, big cost — but it wasn’t the same. Trainer after trai...