“I remember you mentioned you had been waking up very early lately, so I thought this might help you rest more deeply,” she said as she poured a cup for me.

I accepted the drink because refusing such a gesture requires a reason, and women of my generation were trained to preserve social smoothness even when our instincts object.

The tea tasted of chamomile and honey, but there was something faintly bitter beneath the sweetness that I could not quite identify at the time.

That night I slept much too heavily, and the next morning I woke with a fog in my head that felt chemical in quality as if my mind had been wrapped in damp wool.

I stood in the kitchen holding a spoon and found that I could not remember whether I had already fed the cat, even though I had not owned a pet in over a decade.

The moment passed, and I told myself I was just tired, but two weeks later Simone brought the tea again, and the foggy morning returned with even more intensity.

I opened my calendar and stared at a lunch appointment for a full minute before I could remember who the person was or why I had agreed to meet them.

After I hung up from a call with Julian where I had struggled to find the word for “radiator,” I sat down and wrote the date and the symptoms in my private log.

I made an appointment with my physician, Dr. Sarah Miller, who had been my doctor for fifteen years and was known for her low tolerance for vagueness in her patients.

After the bloodwork returned unremarkable, Dr. Sarah looked at me and said, “Martha, you are healthier than half of my fifty year old patients, so tell me when exactly this fog happens.”

I thought about the thermos in Simone’s hand and replied, “It happens in the mornings, usually after I have had visitors the day before.”

She did not push me further but instead instructed me to keep a very detailed log of everything I ate and drank, along with every person who entered my home.

The pattern emerged almost immediately, as the fog only appeared after Simone’s visits and the cups of tea she insisted on pouring for me.

I stopped drinking the tea, but I did not make a scene or an accusation; instead, I became a woman who was temporarily avoiding herbal blends or who was too busy to sip.

I would let the cup cool while we talked, and then I would pour it down the kitchen sink while asking her if she wanted a glass of sparkling water instead.