Feb 12, 2026

While musculoskeletal disorders such as back pain and arthritis remain the leading year-round causes of long-term disability (LTD), there is a noticeable seasonal increase in mental health–related long-term disability claims, particularly in February. One of the most common and distinct drivers of this surge is Seasonal Affective Disorder (SAD).

Seasonal Affective Disorder is a clinically recognized mental health condition that typically worsens during late fall and winter months. Despite its legitimacy, disability claims based on SAD face significant resistance from long-term disability insurance companies.

What Is Seasonal Affective Disorder (SAD)?

Seasonal Affective Disorder is often a component of an underlying major depressive disorder. While some claimants experience SAD as a distinct condition, insurers frequently characterize it as a temporary or situational illness rather than a disabling impairment.

Low vitamin D levels are often linked to Seasonal Affective Disorder (SAD) because reduced winter sunlight lowers the body’s natural production of this vitamin, which is crucial for serotonin and dopamine regulation. While supplementing may help with deficiency-related symptoms, studies show mixed results on its effectiveness as a primary treatment for SAD.

SAD typically peaks in late winter, when prolonged periods of reduced sunlight and cold temperatures are most severe, particularly in northern states. Reduced daylight disrupts the hypothalamus, interferes with circadian rhythms, and alters serotonin and melatonin regulation. These physiological effects can significantly impair mood, energy levels, concentration, and sleep—often to a disabling degree.

Why Long-Term Disability Claims for SAD Are Commonly Denied

Although Seasonal Affective Disorder can be severe, long-term disability insurance companies routinely deny LTD claims based on SAD, even when short-term disability benefits have been approved.

Calendar-Based Limitations and Elimination Periods

First, insurers often argue that SAD is inherently seasonal and therefore does not satisfy the policy’s elimination period. Depending on the policy, the elimination period may last 90, 180, or even 365 days. Insurance companies may contend that symptoms will resolve before benefits are payable.  Many policies require continuous periods of disability, and thus some SAD based claims may not meet that contractual requirement.

Mental/Nervous Disorder Limitations

Second, SAD claims fall under the mental/nervous disorder category. Most long-term disability policies limit benefits for mental or nervous conditions—including depression, anxiety, PTSD, and bipolar disorder—to 24 months, regardless of severity.

Can You Obtain LTD Benefits for Mental/Nervous Conditions?

Yes—but success depends on the strength and consistency of the medical evidence. Mental/nervous disability claims are heavily scrutinized due to their subjective nature. Unlike physical impairments, mental health conditions do not appear on MRIs, x-rays, or blood tests.

To prevail, a claimant must demonstrate that they are unable to perform the material duties of their own occupation due to their condition; and their condition meets the policy’s definition of disability.

Building a Strong Medical Record for a Depression or SAD Claim

Medical documentation for mental/nervous claims differs from that required for physical disabilities. Insurance companies focus on treatment history, clinical observations, and functional limitations.

Treatment by Mental Health Professionals

A successful claim typically includes:

  • Consistent treatment by a licensed psychiatrist or psychologist, including regular psychotherapy sessions.
  • Evidence-based therapies such as Cognitive Behavioral Therapy (CBT) or EMDR (Eye Movement Desensitization and Reprocessing), particularly when trauma or severe depression is present.
  • Medication management by a psychopharmacologist or psychiatrist experienced in treating complex depressive disorders.

Documenting Physical Manifestations of Mental Illness

Even though mental health conditions are psychological in origin, they frequently produce physical symptoms that must be documented. These may include nausea, heart palpitations, insomnia, dizziness, shortness of breath, appetite disruption, hot flashes, or chronic fatigue.

Treating providers should document both subjective complaints and clinical observations, including how symptoms interfere with daily functioning and occupational demands.

The Importance of Consistent Treatment

Consistency with treatment is critical in supporting a disability insurance claim. Infrequent therapy or sporadic treatment often results in denial of these claims. While Newfield Law Group has successfully handled cases involving treatment gaps, such claims are far more difficult to win and infrequent treatment may support an argument against the severity of the impairment.

As a general rule, weekly therapy sessions combined with medication management and appropriate diagnostic testing to rule out physical causes create a more defensible medical record.

Surveillance and Social Media Risks in Mental Health Claims

Mental health claimants must be acutely aware of insurance surveillance practices. Investigators frequently conduct video surveillance and monitor social media activity.

Surveillance Mischaracterization

Insurers often argue that leaving the home, running errands, or attending appointments proves work capacity. This argument ignores the episodic and limited nature of mental health functioning but is routinely used to deny or terminate benefits.

Social Media Monitoring

Insurance investigators are highly skilled at accessing social media accounts. Posts depicting social interaction, travel, or daily activities are often taken out of context and used to undermine claims.

Practical Steps to Strengthen a Mental/Nervous Disability Claim

Newfield Law Group advises clients to take proactive steps to support their claim.

Maintain a Daily Symptom Journal

A detailed daily journal can be powerful corroborating evidence. Entries should track:

  • Mood levels on a 1–10 scale
  • Hours and quality of sleep
  • Appetite changes
  • Energy and concentration levels
  • Anxiety or panic symptoms
  • Medical appointments and medications

When combined with provider records, these journals help establish functional impairment over time.

Document Occupational Impairment

Occupational demands are central to disability determinations. Jobs requiring executive functioning, complex analysis, sustained concentration, or client interaction become untenable for individuals suffering from severe depression or anxiety.

In appropriate cases, written statements from spouses, coworkers, or supervisors may further illustrate how the claimant’s mental illness has altered their ability to function at work.

Why Legal Representation Matters in SAD and Mental Health Claims

Mental/nervous disability claims are among the most challenging to win. Individuals suffering from depression often feel overwhelmed, hopeless, or unable to advocate for themselves during the claims process.

For these reasons, the guidance of an experienced long-term disability insurance attorney is critical. Proper legal representation can help level the playing field, counter insurer tactics, and pursue the benefits claimants are rightfully owed.

Jason newfield

Jason Newfield

Long Term Disability Attorney

Founder Jason Newfield understands the importance of the disability claimants’ cases he takes on. Unlike most of his peers, he has represented family in this process. He knows how much is at stake, and this is why he works one-on-one with clients. Your case will not be passed along to a junior associate to handle. Mr. Newfield will be involved in every part of your case. This personal representation makes a big difference. It is where the passion meets the compassion.

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