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Caffeine Blues: Wake Up to the Hidden Dangers of North America's #1 Drug

$53.76

Dresses Size Chart

Dress Size Chart (Inch)
DRESSES
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 34"-35"
S 2-4 33"-34" 26"-27" 36"-37"
M 6-8 35"-36" 28"-29" 38"-39"
L 10-12 37"-39" 30"-32" 40"-42"
XL 14 40"-42" 33"-35" 43"-45"
Dress Size Chart (cm)
DRESSES
SIZE IN CM
SIZE US / CAN BUST WAIST HIPS
XS 0 78.7-81.2 60.9-63.5 86.3-88.9
S 2-4 83.8-86.3 66-68.5 91.4-93.9
M 6-8 88.9-91.4 71.1-73.6 96.5-99
L 10-12 93.9-99 76.2-81.2 101.6-106.6
XL 14 101.6-106.6 81.2-88.9 109.2-114.3

Swimwear Size Chart

Dress Size Chart (Inch)
SWIMWEAR
SIZE IN INCHES
SIZE US / CAN BUST WAIST HIPS
XS 0 31"-32" 24"-25" 33"-34"
S 2 33"-34" 26"-27" 35"-37"
M 4 35"-36" 28"-29" 37"-38"
L 6 37"-39" 30"-32" 39"-41"
XL 8 40"-42" 33"-35" 42"-44"

Shoes Size Chart

US EURO UK AUS JAPAN CHINA
5 35-36 3 3.5 21.5 35
5.5 36 3.5 4 22 35.5
6 36-37 4 4.5 22.5 36
6.5 37 4.5 5 23 36.5
7 37-38 5 5.5 23.5 37
7.5 38 5.5 6 24 37.5
8 38-39 6 6.5 24.5 38
8.5 39 6.5 7 25 38.5
9 39-40 7 7.5 25.5 39
9.5 40 7.5 8 26 39.5
10 40-41 8 8.5 26.5 40
11 41-42 9 9.5 27.5 41

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Return requests must be submitted within 30 days of delivery. Vitamins, supplements and other health-related products must be unused, unopened, sealed and returned in their original packaging.

Opened or used products cannot be returned for health and safety reasons, unless the item arrived damaged, defective or incorrect. Damaged, defective or incorrect items should be reported within 48 hours of delivery.

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Approved Return Address
Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States
Please contact us before sending a return. Returns sent without prior authorization may be delayed, rejected or returned to the sender.

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Caffeine Blues: Wake Up to the Hidden Dangers of North America's #1 Drug

Caffeine Blues: Wake Up to the Hidden Dangers of North America's #1 Drug

$53.76

Why This Book Stands Out

Unlike other nutrition books, Caffeine Blues zeroes in on the most widely consumed drug in North America. Stephen Cherniske combines scientific rigour with accessible language, making complex biochemistry understandable for everyone. It's not anti-coffee—it's pro-information, giving readers the power to make informed choices. With practical strategies and solid research, this resource remains timeless in a world leaning on caffeine for productivity.

Key Insights from the Book

Caffeine Blues explores how caffeine interferes with the body's natural stress response, triggering hormonal changes that can lead to chronic fatigue and burnout. It explains why even moderate consumption disrupts sleep architecture, reducing deep sleep and fueling a cycle of tiredness and dependence. The book also covers caffeine's role in blood sugar imbalances, digestive issues, and nutrient depletion. Cherniske provides a step-by-step plan to break free from addiction, including dietary changes, supplementation, and lifestyle shifts to restore adrenal health and natural energy.

What Readers Are Discovering

Countless readers have shared how this book changed their view of caffeine. One reviewer said that following the recommendations improved their sleep quality immediately, even after years of poor rest. Another noted that the book gave them the clarity and drive to quit caffeine entirely, leading to steady energy and wellness. Healthcare professionals have praised it as an essential resource for anyone serious about their health.

Who Should Read This Book?

If you're a coffee lover, energy drink consumer, or health professional, this book is a must-read to understand caffeine's true impact. It's especially valuable for those experiencing unexplained fatigue, sleep issues, or stress symptoms despite limiting afternoon caffeine. The audience includes people aiming to optimize energy, athletes wanting peak performance, and healthcare providers seeking evidence-based guidance on caffeine use.

What Is Caffeine Blues About?

Caffeine Blues is a groundbreaking book by Stephen Cherniske that challenges the widespread belief that caffeine is a harmless stimulant. It digs into the science behind caffeine's effects on the body, showing how this common drug contributes to chronic health problems like insomnia, anxiety, adrenal fatigue, and hormonal imbalances. The book offers a comprehensive look at hidden dangers, backed by research and clinical experience, and provides practical steps to reduce or quit caffeine for better health.

Frequently Asked Questions About Caffeine

Is caffeine really addictive? Yes, caffeine is a psychoactive substance that can lead to physical dependence. Regular use changes brain chemistry, and withdrawal symptoms like headaches, fatigue, and irritability are common when stopping abruptly.

How much caffeine is safe per day? While the FDA suggests up to 400 mg per day for healthy adults, the book argues that even lower amounts can cause adverse effects in sensitive individuals. Caffeine Blues encourages readers to find their personal tolerance through gradual reduction.

Can caffeine affect sleep even if consumed early? Absolutely. Caffeine has a half-life of 5–6 hours, staying in the system for hours. It can reduce sleep quality even if consumed in the morning, especially for those with slower metabolism.

Important Information

Things You Need to Know

Your payment and personal information are protected using industry-standard SSL encryption, and all payments are securely processed through Shopify-approved payment providers. Prices are displayed in Canadian dollars, and applicable taxes are calculated at checkout.

Orders are generally processed within 1–3 business days. Standard delivery to Canada usually takes 5–15 business days after dispatch. Delivery times are estimates and may be affected by carrier delays, customs processing, weather conditions or other circumstances outside our control. Tracking information will be provided when available.

Return requests must be submitted within 30 days of delivery. Vitamins, supplements and health products must be unused, unopened, sealed and returned in their original packaging. Opened products cannot be returned unless they were delivered damaged, defective or incorrect.

Customers are responsible for return shipping costs for unwanted or change-of-mind returns, and a restocking fee of up to 20% may apply. Damaged, defective or incorrect items must be reported within 48 hours of delivery and may qualify for a replacement or full refund.

Refunds are issued to the original payment method after the returned item has been received and inspected. Refund processing may take up to 7 business days. Before returning any product, please contact our customer support team for return authorization. Returns sent without prior approval may be delayed or rejected.

Approved returns must be sent to:

Return Address Fullfillonus #1202
1128 Lexington Ave, Bldg 4 E
Rochester, New York 14606
United States

Refused or unclaimed shipments may only be refunded after they are returned and inspected. Original shipping charges, return shipping costs, customs fees and carrier charges may be deducted from the refund where applicable.

Vitamin4CA.com is operated by Cloverlight LLC.

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