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Dr. Whitley Lassen - Specialty in Anxiety, Worry, and Phobias
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OCD
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Phobias
Panic Attacks
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CBT
Is my fear a phobia?
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Dr. Whitley Lassen - Specialty in Anxiety, Worry, and Phobias
Services and Fees
OCD
Anxiety
Worry
Phobias
Panic Attacks
In Person & Online Therapy
Home
About
CBT
Is my fear a phobia?
Featured in media
Videos
Consulting
Blog
Schedule a free consultation
Folder: Services
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Services and Fees
OCD
Anxiety
Worry
Phobias
Panic Attacks
In Person & Online Therapy
Home
About
CBT
Folder: Resources
Back
Is my fear a phobia?
Featured in media
Videos
Consulting
Blog
Schedule a free consultation
Why OCD Makes You Question Everything: Understanding Doubt and Uncertainty
OCD Whitley Lassen 10/21/26 OCD Whitley Lassen 10/21/26

Why OCD Makes You Question Everything: Understanding Doubt and Uncertainty

Why does OCD make you question everything? Understand how obsessive doubt develops, why certainty never feels like enough, and how ERP can help.

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Why You Can't Stop Thinking About It: Understanding Mental Compulsions in OCD
OCD Whitley Lassen 10/7/26 OCD Whitley Lassen 10/7/26

Why You Can't Stop Thinking About It: Understanding Mental Compulsions in OCD

Mental compulsions are one of the most misunderstood symptoms of OCD. Learn why you can't stop thinking about it, how rumination keeps OCD going, and what evidence-based treatment does instead

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Why Exposure and Response Prevention (ERP) Works for OCD
OCD Whitley Lassen 9/23/26 OCD Whitley Lassen 9/23/26

Why Exposure and Response Prevention (ERP) Works for OCD

Exposure and Response Prevention (ERP) is the gold standard treatment for Obsessive-Compulsive Disorder (OCD). Learn how ERP works, why it is so effective, and what to expect from evidence-based OCD treatment.

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Fear of Making the Wrong Decision: Why Choices Feel So Overwhelming
Worry, Anxiety, Perfectionisn Whitley Lassen 9/9/26 Worry, Anxiety, Perfectionisn Whitley Lassen 9/9/26

Fear of Making the Wrong Decision: Why Choices Feel So Overwhelming

Fear of making the wrong decision can lead to overthinking, indecision, and anxiety. Learn why choices feel so overwhelming and discover evidence-based strategies for making decisions with greater confidence.

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Why Reassurance Doesn't Help OCD (And What Helps Instead)
OCD Whitley Lassen 8/26/26 OCD Whitley Lassen 8/26/26

Why Reassurance Doesn't Help OCD (And What Helps Instead)

Reassurance may reduce anxiety in the moment, but it also teaches the brain that certainty is necessary. Learn why reassurance becomes part of the OCD cycle and how evidence-based treatment helps people build confidence instead of chasing certainty.

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Why Trying to Control Everything Makes Anxiety Worse
Worry, ACT, Anxiety Whitley Lassen 8/12/26 Worry, ACT, Anxiety Whitley Lassen 8/12/26

Why Trying to Control Everything Makes Anxiety Worse

Do you find yourself worrying about things you can't control? Learn why the search for certainty can increase anxiety and discover CBT and ACT strategies for focusing on what matters most.

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What Is OCD? Understanding Obsessive-Compulsive Disorder Beyond the Stereotypes
OCD Whitley Lassen 7/29/26 OCD Whitley Lassen 7/29/26

What Is OCD? Understanding Obsessive-Compulsive Disorder Beyond the Stereotypes

What is OCD? Learn what Obsessive-Compulsive Disorder really is, including intrusive thoughts, compulsions, mental rituals, and evidence-based treatments like Exposure and Response Prevention (ERP).

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How to Stop Overthinking Everything
Worry, ACT, Overthinking Whitley Lassen 7/15/26 Worry, ACT, Overthinking Whitley Lassen 7/15/26

How to Stop Overthinking Everything

Wondering how to stop overthinking everything? Learn evidence-based CBT and ACT strategies to break the cycle of rumination, reduce anxiety, and move forward with confidence

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How to Tolerate Uncertainty in Uncertain Times
Worry, Uncertainty, ACT Whitley Lassen 7/1/26 Worry, Uncertainty, ACT Whitley Lassen 7/1/26

How to Tolerate Uncertainty in Uncertain Times

Learn how to tolerate uncertainty using evidence-based CBT and ACT strategies. Discover practical ways to reduce overthinking, stop seeking reassurance, and build resilience when the future feels unclear.

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What to Do During a Panic Attack: A CBT Therapist's Guide
Panic Attacks Whitley Lassen 6/17/26 Panic Attacks Whitley Lassen 6/17/26

What to Do During a Panic Attack: A CBT Therapist's Guide

Learn what to do during a panic attack using CBT strategies that help reduce fear, respond to symptoms effectively, and break the panic cycle.

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Why the News and Social Media Increase Anxiety—and What Helps
Worry, Anxiety Whitley Lassen 6/2/26 Worry, Anxiety Whitley Lassen 6/2/26

Why the News and Social Media Increase Anxiety—and What Helps

Learn why the news and social media increase anxiety and how CBT strategies can help reduce overwhelm, doomscrolling, and stress from current events

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Fear of Public Speaking: A CBT and Exposure Therapy Approach to Overcoming Anxiety
Phobia Whitley Lassen 5/19/26 Phobia Whitley Lassen 5/19/26

Fear of Public Speaking: A CBT and Exposure Therapy Approach to Overcoming Anxiety

Learn how CBT and exposure therapy help reduce fear of public speaking by changing anxious thoughts, limiting avoidance, and building confidence

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Fear of Driving: A CBT and Exposure Therapy Approach to Overcoming Anxiety
Phobia, Fear of driving Whitley Lassen 5/5/26 Phobia, Fear of driving Whitley Lassen 5/5/26

Fear of Driving: A CBT and Exposure Therapy Approach to Overcoming Anxiety

Learn how CBT and exposure therapy help reduce fear of driving by changing anxious thoughts, limiting avoidance, and building confidence

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Fear of Flying: A CBT and Exposure Therapy Approach to Overcoming Anxiety
Phobia, Fear of flying Whitley Lassen 4/21/26 Phobia, Fear of flying Whitley Lassen 4/21/26

Fear of Flying: A CBT and Exposure Therapy Approach to Overcoming Anxiety

Learn how CBT and exposure therapy help reduce fear of flying by changing anxious thoughts, limiting avoidance, and building confidence in air travel

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How to Tolerate Uncertainty and Reduce Worry
Anxiety, Worry Whitley Lassen 3/24/26 Anxiety, Worry Whitley Lassen 3/24/26

How to Tolerate Uncertainty and Reduce Worry

Struggling with uncertainty? Learn how CBT helps you tolerate uncertainty, manage worry, and move forward without needing all the answers.

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What Is Performance Anxiety and How Can You Manage It?
Anxiety Whitley Lassen 3/3/26 Anxiety Whitley Lassen 3/3/26

What Is Performance Anxiety and How Can You Manage It?

Learn what performance anxiety is, why it happens, and how CBT strategies help you manage anxiety in high-pressure situations.

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ACT for Anxiety and Panic: A Different Way to Work With Fear
Anxiety, Panic Attacks Whitley Lassen 2/18/26 Anxiety, Panic Attacks Whitley Lassen 2/18/26

ACT for Anxiety and Panic: A Different Way to Work With Fear

ACT offers a compassionate approach to anxiety and panic by helping you live well without needing to eliminate fear or worry

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How to Get Over Fear of Spiders: A CBT-Based, Evidence-Informed Guide
Phobias, Fear of spiders Whitley Lassen 2/15/26 Phobias, Fear of spiders Whitley Lassen 2/15/26

How to Get Over Fear of Spiders: A CBT-Based, Evidence-Informed Guide

Learn how to get over fear of spiders using CBT and exposure therapy. Understand why spider fear feels intense and how to reduce anxiety safely over time

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Can Weed Cause Panic Attacks? Understanding Weed-Induced Anxiety
Panic Attacks Whitley Lassen 1/21/26 Panic Attacks Whitley Lassen 1/21/26

Can Weed Cause Panic Attacks? Understanding Weed-Induced Anxiety

Can weed cause panic attacks? Learn why a weed-induced panic attack happens, symptoms to look for, and evidence-based tips to manage anxiety after cannabis use.

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Can You Develop Anxiety Later in Life? Understanding Adult-Onset Anxiety
Anxiety Whitley Lassen 1/7/26 Anxiety Whitley Lassen 1/7/26

Can You Develop Anxiety Later in Life? Understanding Adult-Onset Anxiety

Can you develop anxiety later in life? Learn why anxiety disorders, including social anxiety, can emerge in adulthood, common triggers, and evidence-based treatments


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Contact Information:

Email: whitley@drlassen.com

In person therapy sessions available in
Boulder, CO at
1650 38th St, Suite 100E

Teletherapy sessions available to clients in:

Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Maryland, Michigan, Minnesota, Mississippi, Missouri, Nebraska, Nevada, New Hampshire, New Jersey, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, Wisconsin, and Wyoming.

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