Health Advice
- Weight Management
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- Acne
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- Aneurysm, abdominal aortic
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- First aid
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- Leukaemia, acute lymphoblastic
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- Addiction
- Addison's disease
- Adenoids and adenoidectomy
- Frozen shoulder
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- Alcohol misuse
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- Alexander technique
- Rhinitis, allergic
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- Mountain sickness
- Alzheimer's disease
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- Amniocentesis
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- Iron deficiency anaemia
- Vitamin B12 or folate deficiency anaemia
- Anaesthesia
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- Anger management
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- Arteriography
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- Dog bites
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- Antacid medicines
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- Bird flu
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- Weaning
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- Septic arthritis
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- Weight loss surgery
- Barium enema
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- Bedbugs
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- Behçet’s disease
- Facial paralysis
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- Prostate enlargement
- Beta-blockers
- Bicarbonate test
- Binge eating
- Biopsy
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- Spider bite
- Eye, black
- Bladder cancer
- Cystitis
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- Blood donation
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- Blood groups
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- Vomiting blood
- Septicaemia
- Hypertension
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- Blood tests
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- Blushing
- Bromhidrosis (body odour)
- Bone cyst
- DXA scan
- Bone marrow donation
- Stem cell transplant
- Borderline personality disorder
- Bottle feeding
- Botulism
- Rectal cancer
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- Leaky gut syndrome
- Orthodontics
- Brain abscess
- Head injury, severe
- Brain tumour, benign (non-cancerous)
- Brain tumour, malignant (cancerous)
- Brain tumours
- Breast abscess
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- Screening for breast cancer
- Nipple discharge
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- Breastfeeding
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- Leg, broken
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- Toe, broken
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- Smelly feet (bromodosis)
- Bronchitis
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- Bulimia
- Burns and scalds
- Heart bypass
- Caesarean section
- Food poisoning
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- Thrush, oral - adults
- Thrush, oral - babies
- Carbon monoxide poisoning
- Cardiovascular disease
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- Rib, cervical
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- Chemotherapy
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- Chest pain
- Herpes zoster virus
- Statins
- Kidney disease, chronic
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- Cirrhosis
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- Combined contraceptive pill
- Pneumonia
- CT scan
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- Hole in the heart
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- Vegetative state
- Topical corticosteroids
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- Undescended testicles
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- Thyroiditis
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- Fluoride
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- Depression
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- Nutrition
- Rectal examination
- Double vision
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- Shoulder dislocation
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- Lightheadedness
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- Periods, painful
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- Swimmer's ear
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- Ebola virus disease
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- Epidural
- Epilepsy
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- Ocular cancer
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- Seasonal flu
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- Foot pain
- Frostbite
- Gallstones
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- Herpes, genital
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- Tendon repair, hand
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- Nits
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- Hearing and vision tests for children
- Myocardial infarction
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- Heart transplant
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- Heat exhaustion and heatstroke
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- Periods, heavy
- Hepatitis A
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- Hernia, femoral
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- Painkillers, ibuprofen
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- Inquest
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- Natural family planning
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- Poisoning
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- Vomiting in children and babies
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- Total iron-binding capacity (TIBC or transferrin) test
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- Travel vaccines
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- Warfarin
- Weight loss (unexpected and unplanned)
- Whiplash
- Wisdom tooth removal
- X-ray
- Yellow fever
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Every parent’s heart sinks when they receive the dreaded note from school warning about head lice. Don’t worry – Jane Brennan from Brennan’s Life Pharmacy in Donabate is here to to give us advice and tips. The first thing to do is to check the child’s head. You will need some tea tree conditioner, a... Read more >
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Read moreNHS Choices - Causes of obsessive compulsive disorder (OCD)
(20/11/2014)
Despite much research being carried out into obsessive compulsive disorder (OCD), the exact cause of the condition has not yet been identified.
However, a number of different factors that may play a role in the condition have been suggested. These are described below.
Genetics
Genetics is thought to play a part in some cases of OCD. Research suggests OCD may be the result of certain inherited genes that affect the development of the brain.
Although no specific genes have been linked to OCD, there is some evidence that suggests a person with OCD is more likely to have another family member with the condition compared with someone who does not have OCD.
However, it is possible there may sometimes be other reasons for this. For example, it has been suggested some people may "learn" OCD as a result of witnessing other family members with the condition.
Brain differences
Brain imaging studies have shown some people with OCD have differences in certain parts of their brain, including increased activity and blood flow, and a lack of the brain chemical serotonin.
The areas of the brain affected deal with strong emotions and how we respond to those emotions. In the studies, brain activity returned to normal after successful treatment with cognitive behavioural therapy (CBT) or selective serotonin reuptake inhibitors (SSRIs).
Serotonin
Serotonin may play a part in OCD. This brain chemical transmits information from one brain cell to another and is known as a neurotransmitter.
Serotonin is responsible for regulating a number of the body's functions, including mood, anxiety, memory and sleep.
It is not known for sure how serotonin contributes to OCD, but some people with the condition appear to have decreased levels of the chemical in their brain.
Medication that increases the levels of serotonin in the brain, such as certain types of antidepressant, have proven effective in treating OCD.
Life events
OCD may be more common in people with a history of having experienced emotional, physical or sexual abuse, neglect, social isolation, teasing or bullying.
An important life event, such as a bereavement, family break-up, a new job, pregnancy or childbirth, may also trigger OCD in people who already have a tendency to develop the condition – for example, because of genetic factors – and may affect the course of the condition.
For example, the death of a loved one may trigger a fear that someone in your family will be harmed.
Stress seems to make the symptoms of OCD worse, but does not cause OCD on its own.
Personality
People with certain personality traits may be more likely to have OCD. For example, if you are a neat, meticulous, methodical person with high standards – a "perfectionist" – you may be more likely to develop the condition.
OCD may also be a result of simply being more prone to becoming tense and anxious than most people, or having a very strong sense of responsibility for yourself and others.