Mental Health

Symptoms and Causes

How does a mental health problem show up?

Mental health concerns can affect your mood, your thoughts, your body, and your behavior. Signs that are worth paying attention to include:

• Persistent sadness, emptiness, or loss of interest in things you used to enjoy
• Excessive worry, fear, or feeling on edge much of the time
• Trouble sleeping, or sleeping much more than usual
• Changes in appetite, energy, or concentration
• Pulling away from friends, family, or normal activities
• Physical symptoms with no clear cause — headaches, stomach trouble, muscle tension, or a racing heart
• Using alcohol or other substances to cope
• Thoughts of self-harm or that life isn’t worth living

A short period of low mood or stress is a normal part of life. It’s worth reaching out when symptoms last more than two weeks, feel hard to control, or start to interfere with work, relationships, or daily routine.

What causes mental health conditions?

There is rarely a single cause. Most conditions come from a mix of factors: genetics and family history, brain chemistry, hormones, and life experiences such as trauma, chronic stress, grief, or isolation. Physical health plays a role too — thyroid problems, vitamin deficiencies, chronic pain, sleep loss, and certain medications can all affect mood.

Because the body and mind are connected, part of a good evaluation is checking for medical causes that can look like — or worsen — a mental health condition.

Common Conditions

Anxiety

Anxiety is more than ordinary worry. It can show up as constant nervousness, racing thoughts, restlessness, or physical symptoms like a pounding heart and shortness of breath. Panic attacks are short, intense surges of fear, and social anxiety is a strong fear of being judged in everyday situations.

Depression

Depression is a lasting low mood or loss of interest that affects sleep, appetite, energy, and concentration. It is a medical condition, not a sign of weakness, and it responds well to treatment.

Stress and burnout

Ongoing stress — from work, caregiving, finances, or major life changes — can lead to exhaustion, irritability, trouble focusing, and physical symptoms. Left unaddressed, it can tip into anxiety or depression.

Other conditions

Mental health also includes conditions such as bipolar disorder, post-traumatic stress disorder (PTSD), obsessive-compulsive disorder (OCD), ADHD, and substance use disorders. Each has effective treatments, and a primary care visit can help point you toward the right kind of care.

Diagnosis and Screening

How is a mental health condition diagnosed?

Diagnosis usually starts with a conversation about how you’ve been feeling, sleeping, eating, and functioning. Brief, validated questionnaires — such as the PHQ-9 for depression and the GAD-7 for anxiety — help measure symptoms and track progress over time.

Your doctor may also check for physical causes with a focused exam or lab work, since conditions like thyroid disease or anemia can mimic mood and energy changes.

Can I be screened at a regular check-up?

Yes. Mental health screening is a routine part of primary care. You don’t need a separate appointment or a specific diagnosis to bring it up — it can be part of an annual physical or any visit.

Treatment and Support

What are the main treatments?

Most people do best with a combination approach, tailored to them. The main options are:

• Talk therapy — approaches like cognitive behavioral therapy (CBT) are well-studied and, for many conditions, as effective as medication.
• Medication — antidepressants (such as SSRIs and SNRIs) and other medications can help when symptoms are moderate to severe. They often take several weeks to work and are adjusted over time.
• Lifestyle and self-care — sleep, movement, nutrition, and connection have real, measurable effects on mood and anxiety.
• Community and peer support — support groups and trusted relationships are part of recovery, not an afterthought.

How does primary care fit in?

A primary care doctor can screen for common conditions, rule out medical causes, start and manage many treatments, and coordinate a referral to a therapist or psychiatrist when that’s the right step. For a lot of people, it’s the most approachable front door to care.

Everyday Habits That Help

These don’t replace treatment, but they support it — and they help protect mental health over time:

• Protect your sleep. Aim for a consistent schedule; poor sleep both worsens and is worsened by anxiety and depression.
• Move your body. Regular activity, even a daily walk, is one of the most reliable mood boosters.
• Stay connected. Regular contact with people you trust buffers stress and loneliness.
• Watch caffeine and alcohol. Both can amplify anxiety and disrupt sleep.
• Practice a calming skill. Slow breathing, mindfulness, or meditation can settle the body’s stress response.
• Get outside. Time in daylight and nature is linked to better mood.

When to Seek Help

Reach out to a doctor if symptoms last more than two weeks, are getting worse, or are affecting your sleep, work, relationships, or ability to function. You don’t have to wait until things feel unbearable — earlier support usually means an easier recovery.

Useful Links

• Mental Health Topics — National Institute of Mental Health
• SAMHSA National Helpline (treatment referrals) — 1-800-662-4357
• 988 Suicide & Crisis Lifeline
• National Alliance on Mental Illness (NAMI)
• Anxiety & Depression Association of America