15% off €35 or 20% off €45

000000s
Code:LASTDAY
 

15% off €35 or 20% off €45

000000s

Code:LASTDAY

OffersBlack Friday DealsBuy One Get One 1/2 PriceBetter than 1/2 price25% off Online Only Offer2 for €23 Mix & MatchOutletBuy 2 for €6 Mix & MatchShort DatedVitamins & SupplementsVitamins & Supplements Shop AllCBDCollagen & SilicaHair, Skin & NailsShop all Hair, Skin & NailsHair GrowthFunctional MushroomsVitaminsShop all VitaminsMultivitaminsVitamin AVitamin BVitamin CVitamin DVitamin EVitamin KVitamin DrinksMineralsShop all MineralsMagnesiumIronZincCalciumSeleniumChromiumSupplementsShop all SupplementsFibre SupplementsAcidophilus & Friendly BacteriaPeppermint OilGrapeseed ExtractLecithinCollagen & SilicaOmega & Fish OilsPlant Sourced SupplementsSuperfood SupplementsArnicaApple CiderRaspberry KetonesAloe VeraChondroitin & MSMCo Enzyme Q10Evening Primrose OilGarlicGlucosamineGlucomannanSeaweed, Kelps and AquaceuticalsDigestive EnzymesSaw palmettoCharcoalWomen's HealthShop all Women's HealthMenopauseMenstrual SupportUrinary Tract HealthPregnancy & ConceptionMen's HealthShop all Men's HealthProstate HealthChildren's HealthConditionShop all ConditionCholesterolAllergy & Hay Fever CareAnxiety SupportBone & Muscle HealthMuscle Support & Joint PainBrain & Memory SupportWomen's HealthMen's HealthChildren's HealthCold & Immune SupportFatigueDigestive HealthHair, Skin & NailsHeart & CirculationLiver CareMood SupportSexual HealthSleep & RelaxationStress ReliefVisionHerbal & Licensed RemediesShop all Herbal & Licensed RemediesRescue RemedyAshwagandhaMilk ThistleGinseng & GuaranaHomeopathic & Flower RemediesShop all Homeopathic & Flower RemediesRescue RemedyFlower RemediesVegan Vitamins & SupplementsHolland & BarrettVitabioticsSolgarBetterYouNew NordicBioglanNatures AidNovominsDAMEDr OrganicBlack Friday DealsBuy One Get One 1/2 PriceBetter than 1/2 price25% off Online Only OfferOutlet3 for €18 Mix & MatchShort DatedDairy FreeGluten FreeSesame Seed FreeCelery FreeCereal FreeCrustaceans FreeEgg FreeFish FreeKiwi FreeLupin FreeNew inFood & DrinkChristmas Food & GiftsFood & Drink Shop AllVegan FoodDried Fruit, Nuts & SeedsShop all Dried Fruit, Nuts & SeedsDried FruitNutsSeedsMixesChocolate CoatedTeas, Coffee & Hot BeveragesShop all Teas, Coffee & Hot BeveragesCoffee & Coffee SubstituteMushroom DrinksTeasMatcha & Green TeaSleep & Relaxation TeaSlimming TeaWomen's Health TeasHoney, Jams & SpreadsShop all Honey, Jams & SpreadsManuka HoneyHoneyNut ButtersJams & ChutneysSpreadsPateSuperfoodsShop all SuperfoodsSuperfood PowdersMoringa PowderSpirulinaGoji BerriesBaobabChia SeedsDrinks & JuicesShop all Drinks & JuicesMultipack DrinksProtein ShakesJuices & Health ShotsNatural Energy DrinksKombuchaSoft DrinksWaterAlcohol Free DrinksKefirSnacksShop all SnacksProtein BarsLow Calorie SnacksChocolate, Cakes & BiscuitsSavoury SnacksSweet SnacksSnack BarsCrisps & ChipsFlapjacksPopcornFood CupboardShop all Food CupboardCondiments & SaucesApple Cider VinegarSuperfoodsBreakfast CerealsHoney, Jams & SpreadsTinned FoodsRice, Pasta, Pulses & GrainsBreakfast CerealsShop all Breakfast CerealsCereals, Bran & FlakesGranolaMuesliOats & PorridgeBreakfast BarsCookingShop all CookingCooking IngredientsApple Cider VinegarCondiments & SaucesSoya & Meat AlternativeSoup & Ready MealsRice, Pasta, Pulses & GrainsHerbs, Spices & SeasoningGravy & StockHome BakingShop all Home BakingBaking MixesBreadFlourSweeteners & Sugar AlternativesEgg SubstitutesDairy AlternativesShop all Dairy AlternativesOat, Rice & Hemp DrinksSoya DrinksNut DrinksCoconut DrinksNutritionally Complete FoodHolland & BarrettGrenadeNaturyaPukkaHeath & HeatherNakdTwiningsMeridianPerfectTedOptimum NutritionBlack Friday DealsBuy One Get One 1/2 PriceBetter than 1/2 price25% off Online Only OfferBuy 2 for €6 Mix & MatchShort DatedOutlet2 for €3 Mix & MatchGluten FreeDairy FreeWheat FreeEgg FreeSugar FreeMilk FreeSoya FreeSesame Seed FreeCelery FreeFish FreeNew inSports NutritionSports Nutrition Shop AllProteinShop all ProteinClear ProteinProtein VeganMeal ReplacementsWhey ProteinMass GainersDiet ProteinCaseinSports SupplementsShop all Sports SupplementsSports CollagenBars, Drinks & SnacksShop all Bars, Drinks & SnacksEnergy BarsProtein BarsProtein ShakesProtein SnacksNutritionally Complete FoodMeal Replacement ShakesPre Workout & EnergyShop all Pre Workout & EnergyPre WorkoutAmino Energy DrinksAmino Energy PowdersIntra WorkoutKetoPost WorkoutAmino AcidsShop all Amino AcidsBCAAArginineCreatineShop all CreatineCreatine PowderRehydrationShop all RehydrationElectrolytesEnergy GelsVegan Sports NutritionShop all Vegan Sports NutritionVegan ProteinVegan Protein BarsVegan Pre Workout & EnergyVegan Amino AcidsVegan CreatineSports AccessoriesShop all Sports AccessoriesBottles & ShakersFitness GoalShop all Fitness GoalRecoveryMuscle & StrengthLean MuscleEnergy & EnduranceDiet & Weight LossKetoHolland & BarrettOptimum NutritionPrecision EngineeredGrenadeUSNMyproteinApplied NutritionPhDNakdSiSBlack Friday DealsBuy One Get One 1/2 PriceBetter than 1/2 price25% off Online Only OfferShort DatedOutletGluten FreeDairy FreeSugar FreeWheat FreeEgg FreeMilk FreePalm Oil FreeSesame Seed FreeSoya FreeCelery FreeNew inBeautyNatural Beauty Shop AllAromatherapy & HomeShop all Aromatherapy & HomePure Essential OilsBlended Essential OilsBase & Carrier OilsHolisticSkincareShop all SkincarePremium SkincareFace CareBody CareSun CareTanning & BronzingEye CareLip CareFoot CareHand & Nail CareCBD BeautyHair Skin & NailsShop all Hair Skin & NailsNail ConditionsSkin ConditionsCollagenWashing & BathingShop all Washing & BathingShampoo & ConditionerBathing AccessoriesShower Gel & Body WashDeodorantDentalHand WashSoapBath Soak & OilBody ScrubBath Bombs & SaltsFeminine CareIncontinence SupportHair CareShop all Hair CareShampoo & ConditionerHair ColouringHair MasksHair Oil & SerumHair Spray, Gel & MousseHair AccessoriesMother & BabyShop all Mother & BabyBaby Skincare & ToiletriesMakeupElectrical WellnessSexual WellnessDr OrganicFaith in NatureWeledaNaturtintHolland & BarrettTisserandMiaromaQ+ATrilogyChilds FarmBlack Friday DealsBuy One Get One 1/2 PriceBetter than 1/2 price2 for €23 Mix & Match25% off Online Only OfferOutletAlcohol FreeDairy FreeGluten FreeParfum FreePalm Oil FreeSesame Seed FreeSoya FreeCelery FreeCereal FreeCrustaceans FreeNew inWeight ManagementWeight Management Shop AllSlimming TabletsFat Burners, Binders & Appetite SuppressantsShop all Fat Burners, Binders & Appetite SuppressantsFat BurnersFat BindersAppetite SuppressantsShakes & Weight Management ShotsShop all Shakes & Weight Management ShotsMeal Replacement ShakesWeight Management ShotsDiet Food & DrinkShop all Diet Food & DrinkDiet FoodLow Calorie SnacksSlimming TeaExercise SupportHolland & BarrettGrenadeOptimum NutritionHeath & HeatherPulsinUSNPhDDiabloEat WaterGreenBlack Friday DealsBuy One Get One 1/2 Price25% off Online Only OfferBetter than 1/2 priceShort DatedGluten FreeSugar FreeDairy FreeWheat FreeMilk FreeEgg FreeCelery FreeCrustaceans FreeFish FreeKiwi FreeNew inChristmasHealth & WellnessShop all Health & WellnessJoints Bones & MusclesEnergyGut HealthShop all Gut HealthGut Health FoodHair Skin & NailsShop all Hair Skin & NailsNail ConditionsSkin ConditionsCollagenStress AnxietyShop all Stress AnxietyEnergy SupportSleep & RelaxationShop all Sleep & RelaxationRelaxationFood & DietShop all Food & DietKeto FoodMenopauseHolland & BarrettNaturtintDr OrganicVitabioticsApplied NutritionOptimum NutritionWildWeledaSolgarNew NordicBlack Friday DealsBuy One Get One 1/2 PriceBetter than 1/2 price25% off Online Only Offer2 for €23 Mix & MatchOutlet3 for €18 Mix & MatchDairy FreeGluten FreeSugar FreeAlcohol FreeWheat FreeSesame Seed FreeSoya FreeCelery FreeCereal FreeCrustaceans FreeNew inShop for your WellnessGut HealthImmunityEnergyWomen's HealthMenopauseSkincareJoints, Bones & MusclesHair, Skin & NailsSleep & RelaxationFood & DietChildren's HealthStress ReliefHealthy HeartLow Mood & DepressionEye HealthSexual HealthLearn about WellnessJoints, Bones & MusclesWomen's HealthPeriod & Cycle HealthMenopauseImmunityGut HealthFood & DietSports & FitnessSleep & RelaxationHair Skin & NailsArticlesAll articlesHealthFood & nutritionGut healthImmunityJoints, bones & musclesWomen's healthWellnessHair & skinMental wellbeingSeasonalSleep & relaxationSports nutritionRecipesAll recipesGluten freeLow sugarVeganDairy freePodcast

Explore related topics

We answer your most Googled questions on hormones

jodi-johnson

Written byJodi M Johnson

heeral-patel-bio

Reviewed byHeeral Patel

Happy young smiling woman with freckles outdoors
What are hormones? Let’s work our way through your most Googled questions on hormones, hormonal imbalances and whether HRT is safe.

Summary

1What causes hormone imbalance?

Many factors can trigger a hormone imbalance, including: Puberty, Pregnancy, Menopause, Chronic stress, Steroids, Certain medications...

2How to know if you have a hormone imbalance?

There are many signs and indicators that you may have a potential hormone imbalance, these can include: Mood swings, Heavy or painful periods, Low...

3Is hormone replacement therapy safe?

Used to help menopause symptoms, hormone replacement therapy (HRT) is a treatment which replaces the hormones oestrogen and progesterone. This is...

Explore related topics

In this article we’re sharing our answers to 9 of your most Googled questions on hormones.

 We’ll cover what hormones are, what may cause a hormone imbalance, the different types of hormones including sex and stress hormones, oestrogen, and testosterone, as well as touching on hormone replacement therapy (HRT).

What are hormones?

Travelling in your bloodstream to tissues or organs, hormones are the bodies chemical messengers. Hormones affect many different processes, including: 
  • Growth and development 
  • Metabolism
  • Sexual function 
  • Reproduction 
  • Mood 
The endocrine system is made up of all the body’s different hormones. The major endocrine glands are the pituitary, pineal, thymus, thyroid, adrenal glands, and pancreas.1

In addition, men produce hormones in their testes and women in their ovaries.
Portrait of smiling woman sitting on floor of city street after running.

How to balance hormones?

Check out our article on how to balance your hormones in seven natural steps.

What causes hormone imbalance?

Many factors can trigger a hormone imbalance, including:
  • Puberty 
  • Pregnancy 
  • Menopause 
  • Chronic stress 
  • Steroids 
  • Certain medications 
  • Autoimmune conditions, including Graves’ disease, type 1 diabetes, Hashimoto’s disease, polyglandular syndromes, and Addison’s disease 
  • Endocrine gland injury caused by radiation therapy, infection, trauma, excessive blood loss, or damage from surgery 
  • Tumours, growths, or adenomas (noncancerous tumours on the pituitary, parathyroid or adrenal glands)2,3 
Take a look at our article on the best & worst foods for hormone health!

How to know if you have a hormone imbalance?

There are many signs and indicators that you may have a potential hormone imbalance, these can include: 
  • Mood swings 
  • Heavy or painful periods
  • Low libido 
  • Insomnia or poor-quality sleep
  • Unexplained weight gain
  • Skin problems
  • Fertility problems
  • Headaches
  • Weak bones
  • Vaginal dryness
Other than a potential hormone imbalance, these symptoms can be found in more serious medical conditions (e.g., PCOS), so it would be advised to speak to your GP if you are experiencing any of these signs.

Can hormone imbalance cause depression?

Hormones and neurotransmitters share mutual pathways and receptor sites in areas of the brain linked to mood. 

Studies have suggested that there’s an increased risk for major depressive disorder (MDD) in women compared with men; these risks appear to become more evident after puberty and continue throughout the reproductive life cycle.5
Natural photo of lady in orange t shirt outdoors. Happy expression

Can hormone imbalance cause dizziness?

Yes, hormonal imbalance can cause dizziness.6

Is hormone replacement therapy safe?

Used to help menopause symptoms, hormone replacement therapy (HRT) is a treatment which replaces the hormones oestrogen and progesterone. This is because as you approach menopause these hormones fall to low levels.7 

The effects of Hormone Replacement Therapy (HRT) vary depending on a few factors. It can differ based on the types of hormones used, whether it’s given in pills, or patches and gels, as well as the timing of first use – for example, around menopause, or later.8 

The NHS states that the benefits of HRT usually outweigh the risks. And that recent evidence suggests that the risks of serious side effects from HRT are very low.9

What are stress hormones?

Cortisol is widely known as the body’s stress hormone. It is produced, and naturally released, by your adrenal glands. When you are stressed, increased cortisol is released into your bloodstream.10

For more information on stress and cortisol, check out our article: We answer your most Googled questions on stress.

What are sex hormones?

Sex hormones are also known as sex steroids, gonadal steroids, and gonadocorticoids. The sex steroid hormones (SSHs) play several roles in regulation of various processes in the cardiovascular, immune, muscular, and neural systems.11 

The main reproductive hormones are oestrogen, testosterone, and progesterone. These are instrumental in sexuality and fertility – responsible for pregnancy, puberty, menstruation, menopause, sex drive, sperm production and more.12

What is testosterone?

Testosterone is the primary male hormone responsible for regulating sex differentiation, producing male sex characteristics, spermatogenesis (the process by which sperm cell production occurs), and fertility.13 

In men, it’s thought to regulate: 
  • Sex drive (libido) 
  • Bone mass 
  • Fat distribution
  • Muscle mass and strength 
  • Production of red blood cells and sperm14

What is oestrogen?

Oestrogen is one of the main female sex hormones, predominantly produced by the ovaries.

In the female body, oestrogen is needed for: 
  • Puberty and breast development 
  • The menstrual cycle 
  • Fertility and pregnancy
  • Bone strength 
  • Maintaining normal cholesterol levels 
Oestrogen also affects other parts of your body, such as your brain and heart. Oestrogen also plays a part in supporting bladder control and helping to protect your skin from the effects of ageing.15

The final say

We hope this has cleared up some of your questions around hormones. If you feel like you may be experiencing a hormonal imbalance and would like some individual advice, we’d recommend speaking to your GP.

Related Articles

Sign up for exclusive offers
Plus, get expert advice to support your health & wellness straight to your inbox when you sign up to Holland & Barrett emails.