Bolt Guides

Find out which intermittent fasting methods are easiest to stick to, what the evidence says about long-term results, and practical tips to make IF work for you.

How Does Fasting Work? Benefits, Types & Safety

Weight Loss

min read

How Does Fasting Work? Benefits, Types & Safety

Discover what fasting does to your body — from fat burning and autophagy to hormonal shifts. Learn the types, rules, and who should avoid fasting.

Read all on weight loss

GLP-1 Brands

Read all on GLP-1 brands

Wegovy

Answer all your questions about Wegovy treatments for weight loss.

Read Wegovy guides

Mounjaro

Answer all your questions about Mounjaro treatments for weight loss.

Read Mounjaro guides

GLP-1 Brands

min read

Ozempic Nausea: Why It Happens & How to Manage It

Feeling sick on Ozempic? Learn why nausea is so common with semaglutide, how long it lasts, tips to ease symptoms, and when to seek medical advice.

Read now

Ozempic Nausea: Why It Happens & How to Manage It

Lump After Injection: Causes, Treatment & Prevention

GLP-1 Brands

min read

Lump After Injection: Causes, Treatment & Prevention

Got a lump after a subcutaneous injection? Learn what causes injection site lumps, how to treat them at home, and when to seek medical advice.

Swollen Lymph Nodes and Saxenda: Causes & Advice

GLP-1 Brands

min read

Swollen Lymph Nodes and Saxenda: Causes & Advice

Not sure if Saxenda causes swollen lymph nodes? Learn what lymphadenopathy means, likely causes, and when to seek medical help during weight loss treatment.

Does Ozempic Cause Headaches? Causes & Management

GLP-1 Brands

min read

Does Ozempic Cause Headaches? Causes & Management

Ozempic headaches affect 1 in 10–100 patients. Find out why they happen, how long they last, and practical ways to manage them safely.

Read all on GLP-1 brands

Men’s Health

Testosterone

Answer all your questions about testosterone.

Read testosterone guides

Erectile dysfunction

Answer all your questions about erectile dysfunction.

Read erectile dysfunction guides

Erectile Dysfunction

min read

Does Castor Oil Help with Erectile Dysfunction? Evidence and Treatments

Does castor oil help with erectile dysfunction? Discover the evidence behind this claim, learn about proven ED treatments recommended by NICE, and find out when to see your GP for persistent erectile difficulties.

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Testosterone

min read

Does Testosterone Affect Fertility? Recovery & Conception Guide

Testosterone suppresses ovulation and fertility — but can it return after stopping treatment? Explore recovery timelines, risks, and conception options with ...

Testosterone

min read

Calorie Deficit Effect on Testosterone: What the Evidence Shows

Calorie deficit effect on testosterone explained — learn how energy restriction affects hormone levels, warning signs to watch for, and evidence-based steps to protect testosterone while losing weight safely.

Testosterone

min read

How Many nmol/L Does Testogel Raise Testosterone Levels?

Discover how many nmol/L Testogel raises testosterone levels in UK patients. Learn about expected increases, individual variation, dosing, absorption factors, and essential monitoring for safe testosterone replacement therapy.

Erectile Dysfunction

min read

Does MDMA Cause Erectile Dysfunction? Effects and Recovery

Does MDMA cause erectile dysfunction? Learn how ecstasy affects erections, the mechanisms involved, recovery timelines, and when to seek medical help for MDMA-related sexual difficulties.

Erectile Dysfunction

min read

Does High Blood Pressure Cause Erectile Dysfunction? UK Guide

Does high blood pressure cause erectile dysfunction? Discover how hypertension damages blood vessels affecting erections, which medications may worsen ED, and when to seek medical help for both conditions.

Erectile Dysfunction

min read

Does Cirrhosis Cause Erectile Dysfunction? UK Medical Guide

Does cirrhosis cause erectile dysfunction? Discover how liver cirrhosis affects sexual function through hormonal changes, vascular complications, and neurological factors. Learn about safe treatment options, when to seek medical advice, and how UK specialists manage ED in men with liver disease.

Erectile Dysfunction

min read

Does Ropinirole Cause Erectile Dysfunction? UK Medical Guide

Does ropinirole cause erectile dysfunction? Explore the complex relationship between this Parkinson's medication and sexual function, including management strategies and when to seek medical advice.

Erectile Dysfunction

min read

Does Trenbolone Cause Erectile Dysfunction? UK Medical Guide

Does trenbolone cause erectile dysfunction? Discover how this anabolic steroid disrupts natural testosterone production, the mechanisms behind steroid-related sexual problems, symptoms to recognise, and evidence-based treatment options available through the NHS.

Erectile Dysfunction

min read

How to Use Ginger for Erectile Dysfunction: Evidence and Safety

Discover how to use ginger for erectile dysfunction, including preparation methods, potential mechanisms, safety considerations, and when to seek medical advice. Evidence-based guidance for UK men.

Erectile Dysfunction

min read

Does BPC-157 Cause Erectile Dysfunction? Evidence and Safe Treatments

Does BPC-157 cause erectile dysfunction? Discover the facts about this unlicensed peptide, its unknown safety profile, and evidence-based NHS treatments for ED including PDE5 inhibitors and when to seek medical advice.

Erectile Dysfunction

min read

Does Tizanidine Cause Erectile Dysfunction? Evidence and Guidance

Does tizanidine cause erectile dysfunction? Discover how this muscle relaxant may affect sexual function, what the evidence shows, and practical steps to take if you experience symptoms whilst on treatment.

Erectile Dysfunction

min read

What Is Position-Dependent Erectile Dysfunction? Causes and Treatment

What is position-dependent erectile dysfunction? Discover how body position affects erection quality, the vascular causes behind positional ED, when to seek medical help, and evidence-based treatment options available through the NHS.

Erectile Dysfunction

min read

Does Omeprazole Affect Erectile Dysfunction? UK Evidence Review

Does omeprazole affect erectile dysfunction? Discover what UK clinical evidence reveals about this proton pump inhibitor and sexual function, plus guidance on when to speak to your GP about erectile concerns.

Erectile Dysfunction

min read

Does Felodipine Cause Erectile Dysfunction? Evidence and Options

Does felodipine cause erectile dysfunction? Discover the evidence on this calcium channel blocker's effects on sexual function, how it compares to other blood pressure medications, and what to do if you experience ED whilst taking felodipine.

Erectile Dysfunction

min read

Do Alpha Blockers Cause Erectile Dysfunction? Evidence and Management

Do alpha blockers cause erectile dysfunction? Discover the evidence on how tamsulosin, doxazosin, and other alpha blockers affect sexual function, plus practical management strategies for men concerned about side effects.

GLP-1 Brands

min read

Lump After Injection: Causes, Treatment & Prevention

Got a lump after a subcutaneous injection? Learn what causes injection site lumps, how to treat them at home, and when to seek medical advice.

GLP-1 Brands

min read

Swollen Lymph Nodes and Saxenda: Causes & Advice

Not sure if Saxenda causes swollen lymph nodes? Learn what lymphadenopathy means, likely causes, and when to seek medical help during weight loss treatment.

GLP-1 Brands

min read

Does Ozempic Cause Headaches? Causes & Management

Ozempic headaches affect 1 in 10–100 patients. Find out why they happen, how long they last, and practical ways to manage them safely.

Bolt Guides

Featured

Best Time to Take GLP-1: Morning or Night? (UK Guide)

Weight loss

Best Time to Take GLP-1: Morning or Night? (UK Guide)

Is 16/8 Intermittent Fasting Sustainable Long-Term?

How Does Fasting Work? Benefits, Types & Safety

GLP-1 Brands

Wegovy

Mounjaro

Ozempic Nausea: Why It Happens & How to Manage It

Lump After Injection: Causes, Treatment & Prevention

Swollen Lymph Nodes and Saxenda: Causes & Advice

Does Ozempic Cause Headaches? Causes & Management

Men’s Health

Testosterone

Erectile dysfunction

Does Castor Oil Help with Erectile Dysfunction? Evidence and Treatments

Does Testosterone Affect Fertility? Recovery & Conception Guide

Calorie Deficit Effect on Testosterone: What the Evidence Shows

How Many nmol/L Does Testogel Raise Testosterone Levels?

Browse all

Does MDMA Cause Erectile Dysfunction? Effects and Recovery

Does High Blood Pressure Cause Erectile Dysfunction? UK Guide

Does Cirrhosis Cause Erectile Dysfunction? UK Medical Guide

Does Ropinirole Cause Erectile Dysfunction? UK Medical Guide

Does Trenbolone Cause Erectile Dysfunction? UK Medical Guide

How to Use Ginger for Erectile Dysfunction: Evidence and Safety

Does BPC-157 Cause Erectile Dysfunction? Evidence and Safe Treatments

Does Tizanidine Cause Erectile Dysfunction? Evidence and Guidance

What Is Position-Dependent Erectile Dysfunction? Causes and Treatment

Does Omeprazole Affect Erectile Dysfunction? UK Evidence Review

Does Felodipine Cause Erectile Dysfunction? Evidence and Options

Do Alpha Blockers Cause Erectile Dysfunction? Evidence and Management

Lump After Injection: Causes, Treatment & Prevention

Swollen Lymph Nodes and Saxenda: Causes & Advice

Does Ozempic Cause Headaches? Causes & Management

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